182 free tools, and counting
Every little tool you need, all in one place.
Make documents, edit photos, work with PDFs, run everyday calculators — and dozens of other small jobs.
- 100% private
- No uploads
- No sign-up
- Works on any device
Most popular
The ones people reach for most.
Biodata MakerCreate a beautiful marriage biodata in minutes — pick a template, fill in your details and download as PDF.Resume MakerBuild a clean, ATS-friendly resume in minutes — fill in your details, see a live preview and download a real, selectable-text PDF, all in your browser.Invoice GeneratorCreate a professional invoice in minutes — line items, tax and totals with a live preview, or switch to GST mode for CGST/SGST/IGST and HSN codes, all in your browser.Image CompressorCompress JPG, PNG and WebP images right in your browser — shrink to a target file size or fine-tune quality, with no upload and no quality loss you can't control.Background RemoverRemove the background from a photo automatically and get a transparent PNG — runs entirely in your browser with AI, no upload and no sign-up.Passport Photo MakerMake a passport or visa photo to the exact size for India, the US, UK, Schengen and more — crop to spec and download a printable 4×6 sheet, all in your browser.Merge PDFCombine several PDF files into one — add your PDFs, drag them into the order you want and download the merged file, all in your browser with no upload.Image to PDFCombine JPG, PNG and WebP images into a single PDF — reorder the pages and download, all in your browser with no upload.
All 182 tools
Browse the full list below, or press Ctrl K to search by name or task.
Biodata MakerCreate a beautiful marriage biodata in minutes — pick a template, fill in your details and download as PDF.Resume MakerBuild a clean, ATS-friendly resume in minutes — fill in your details, see a live preview and download a real, selectable-text PDF, all in your browser.Cover Letter MakerWrite a professional cover letter in minutes — fill in your details, the recipient and your message, see a live preview and download a real, selectable-text PDF, all in your browser.Invoice GeneratorCreate a professional invoice in minutes — line items, tax and totals with a live preview, or switch to GST mode for CGST/SGST/IGST and HSN codes, all in your browser.Billing SoftwareRing up sales for any shop — manage products, build a cart, work out GST and print thermal receipts, all in your browser with no upload.Certificate MakerDesign a printable certificate of achievement, completion or appreciation — pick a template, add the recipient and details, and download a landscape PDF, all in your browser.Business Card MakerDesign a professional business card — pick a template, add your name, title, company and contact details, then download as a high-res PNG or print-ready PDF, all in your browser.ID Card MakerCreate a professional employee or student ID card — upload a photo, add name, designation, ID number and a barcode, then download as PNG or PDF, all in your browser.Formal Letter MakerWrite a professional formal letter — fill in sender, recipient, subject and body, see a live preview and download a print-ready PDF, all in your browser.Meeting Agenda MakerCreate a structured meeting agenda — add agenda items with time slots and owners, see a live preview and download a clean PDF, all in your browser.Appointment Letter GeneratorGenerate a professional appointment or offer letter — fill in company, candidate, role and terms, see a live preview and download a PDF, all in your browser.Rent Receipt GeneratorGenerate a printable rent receipt with landlord, tenant, amount and period — download as PDF for HRA claims and records, all in your browser with no upload.
Image CompressorCompress JPG, PNG and WebP images right in your browser — shrink to a target file size or fine-tune quality, with no upload and no quality loss you can't control.Image ResizerResize JPG, PNG and WebP images by pixels or percentage right in your browser — lock the aspect ratio or use passport-photo presets, with no upload.Image ConverterConvert images between JPG, PNG and WebP right in your browser — batch-convert several at once with adjustable quality and no upload.Rotate & Flip ImageRotate images by 90° or flip them horizontally and vertically right in your browser — fix sideways photos and download instantly, with no upload.Image CropperCrop images right in your browser — drag to select any area or lock to a fixed ratio like 1:1, passport or A4, then download instantly with no upload.Passport Photo MakerMake a passport or visa photo to the exact size for India, the US, UK, Schengen and more — crop to spec and download a printable 4×6 sheet, all in your browser.Circle CropCrop any image into a circle for profile pictures and avatars — pick the size, get a transparent-corner PNG, all in your browser with no upload.Signature CropperTurn a photo or scan of your signature into a clean transparent PNG — crop it, remove the white background and download, ready for forms and documents.EXIF RemoverSee the hidden metadata in your photos — camera, date and GPS location — and strip it out before sharing, all in your browser with no upload.Blur & PixelateBlur or pixelate parts of an image to hide faces, addresses, card numbers and other private details — draw over what to redact, all in your browser.Watermark ImageAdd a text watermark to your photos to protect them — choose the position, size, colour and opacity, or tile it across the image, all in your browser.Background RemoverRemove the background from a photo automatically and get a transparent PNG — runs entirely in your browser with AI, no upload and no sign-up.Background ChangerSwap a photo's background for a solid colour like white or blue — perfect for passport photos and product shots, all in your browser with no upload.Favicon GeneratorTurn any image into a favicon — download a multi-size .ico plus PNG icons for browsers, iOS and Android, all generated in your browser.Color PickerPick colours from any image to get their hex and RGB values, and pull out the photo's dominant colour palette — all in your browser.Split ImageSplit an image into an even grid of tiles — great for Instagram carousels and photo grids — and download them all as a ZIP, all in your browser.Photo FiltersApply filters and adjustments to your photos — grayscale, sepia, brightness, contrast and saturation — with a live preview, all in your browser.Add BorderAdd a coloured border or frame around your image and round the corners — pick the width, colour and radius, all in your browser with no upload.Meme GeneratorAdd classic top and bottom captions to any image to make a meme — bold Impact text with a live preview, all in your browser with no upload.Collage MakerCombine several photos into a grid collage — choose a layout, spacing and background, then download, all in your browser with no upload.Social Image ResizerResize one image to every social media platform size — Twitter/X, Instagram, Facebook, LinkedIn, YouTube, and OG — and download them all as a ZIP.Photo EditorExposure, highlights, shadows, white balance, clarity, vignette and more — precision sliders with a live histogram, undo and straightening, all in your browser.
Word CounterCount words, characters, sentences, paragraphs and reading time as you type — a fast, private word counter that runs entirely in your browser with no upload.Character CounterCount characters with and without spaces and check your text against Twitter, SEO title and meta description limits — live in your browser, nothing uploaded.Case ConverterConvert text to UPPERCASE, lowercase, Title Case, Sentence case, camelCase, snake_case or kebab-case with one click — instant and private, right in your browser.Remove Line BreaksStrip line breaks from text — join wrapped lines into one, delete blank lines and collapse extra spaces, all live in your browser with no upload.Remove Duplicate LinesRemove duplicate lines from a list while keeping the original order — with case-insensitive matching and trim options, all in your browser with no upload.Sort Text LinesSort lines of text alphabetically, numerically or by length — reverse the order and remove duplicates in one step, all live in your browser with no upload.Find and ReplaceFind and replace text online — plain text or regular expressions, case-sensitive or not, with a live match count, all in your browser with no upload.Slug GeneratorTurn any title into a clean, SEO-friendly URL slug — lowercase, accents stripped, spaces to hyphens, with an option to drop common stop words, all in your browser.Lorem Ipsum GeneratorGenerate Lorem Ipsum placeholder text — choose paragraphs, sentences or words and copy it instantly, all in your browser with no upload.Fancy Text GeneratorTurn plain text into 40+ Unicode fonts — cursive, gothic, bubble, upside down — plus decorative frames, ready to paste into your Instagram or WhatsApp bio.Text CompareCompare two pieces of text and see exactly what changed — added and removed words or lines highlighted side by side, all in your browser with no upload.Reverse TextReverse text by character, word or line — or flip it upside down — instantly in your browser with no upload.Keyword Density CheckerCheck keyword density and word frequency for SEO — see your top single words, two-word and three-word phrases with their occurrence counts, all in your browser with no upload.Readability CheckerCheck the readability of your writing with the Flesch Reading Ease score and grade level — see word, sentence and syllable stats, all in your browser with no upload.Number to WordsConvert any number to its English word form — Indian system (lakhs and crores) or International (millions and billions), with cheque-safe ALL CAPS output.Hashtag GeneratorGenerate relevant hashtags for any topic — get popular and niche suggestions organised by platform, then copy them all in one click, all in your browser.Social Bio FormatterWrite your social bio once and see live character counts for Twitter/X (160), Instagram (150), LinkedIn (220) and TikTok (80) — with per-platform copy and an emoji picker.Morse Code ConverterConvert text to Morse code and Morse code back to text — with audio playback at adjustable speed and a visual signal display, all in your browser.Caesar Cipher & ROT13Encode or decode text with ROT13 or any Caesar cipher shift (1–25) — see the result live as you type, all in your browser with no upload.Text RepeaterRepeat any word, phrase or emoji a set number of times with a custom separator — copy the result in one click, all in your browser with no upload.Sentence CounterCount sentences, words, characters and paragraphs as you type — with estimated reading and speaking times, all live in your browser with no upload.
Meta Tag GeneratorGenerate title, description, keywords, robots, canonical and viewport meta tags for your page — copy the ready-to-paste HTML, all in your browser.Open Graph & Twitter Card GeneratorGenerate Open Graph and Twitter Card meta tags with a live social-share preview — see how your link will look on Facebook, Twitter/X and more before you publish.SERP Snippet PreviewSee how your page title and meta description will look in Google search results — live desktop and mobile preview with pixel-based length limits, all in your browser.Robots.txt GeneratorGenerate a robots.txt file with allow/disallow rules for one or more crawlers, plus a sitemap directive — copy or download it, all in your browser.XML Sitemap GeneratorTurn a list of URLs into a valid XML sitemap — set change frequency and priority, then download sitemap.xml, all in your browser with no upload.UTM / Campaign URL BuilderBuild a trackable campaign URL with UTM source, medium, campaign, term and content parameters — ready to paste into your analytics, all in your browser.JSON-LD Schema GeneratorGenerate JSON-LD structured data for Article, Product, FAQ, Local Business and Breadcrumb pages — copy the ready-to-paste script tag, all in your browser.hreflang Tag GeneratorGenerate hreflang link tags to tell search engines which language and region each version of your page targets — copy the ready-to-paste HTML, all in your browser.301 Redirect GeneratorTurn a list of old and new URLs into ready-to-paste Nginx, Apache (.htaccess) and Next.js redirect rules — all in your browser with no upload.Canonical URL CheckerNormalise any URL to its canonical form — lowercase scheme and host, remove default ports, sort query params and resolve relative paths, all in your browser.Keyword Prominence CheckerCheck how early and often your target keyword appears in a page's title, headings and body text — get a prominence score and placement breakdown, all in your browser.
Image to Base64Convert an image to a Base64 data URI you can paste straight into HTML, CSS or code — encoded in your browser with no upload.CSV ↔ JSON ConverterConvert CSV to JSON and JSON back to CSV — header row and delimiter options, quoted fields handled properly, all in your browser with no upload.JSON ↔ YAML ConverterConvert JSON to YAML and YAML back to JSON instantly — with clear error messages for invalid input, all in your browser with no upload.Markdown PreviewerWrite or paste Markdown and see the rendered result live — then copy the clean HTML, all in your browser with nothing uploaded.XML ↔ JSON ConverterConvert XML to JSON and JSON back to XML instantly — with pretty-print output and clear error messages for invalid input, all in your browser with no upload.HTML to MarkdownPaste HTML and get clean Markdown — or convert Markdown back to HTML — with a live split preview, all in your browser with no upload.TOML ↔ JSON ConverterConvert TOML to JSON and JSON back to TOML instantly — with pretty-print and clear error messages for invalid input, all in your browser with no upload.CSV EditorEdit CSV files in an interactive table — add and remove rows and columns, rename headers, sort and download, all in your browser with no upload.JSON MinifierMinify JSON to strip whitespace or beautify it with indented formatting — with exact error location for invalid input, all in your browser with no upload.
Image to PDFCombine JPG, PNG and WebP images into a single PDF — reorder the pages and download, all in your browser with no upload.Merge PDFCombine several PDF files into one — add your PDFs, drag them into the order you want and download the merged file, all in your browser with no upload.Split PDFSplit a PDF into separate files — by page ranges, every N pages or one file per page — and download them as a ZIP, all in your browser with no upload.Organize PDFReorder, rotate and delete pages in a PDF from a visual thumbnail grid, then download the rearranged file, all in your browser with no upload.Extract PDF PagesPull selected pages out of a PDF into a new file — pick the pages you need and download, all in your browser with no upload.PDF to ImageConvert each page of a PDF into a JPG, PNG or WebP image — choose the quality, preview every page and download them all as a ZIP, all in your browser.PDF to TextExtract the text from a PDF into plain, editable text — copy it or download a .txt file, all in your browser with no upload.Text to PDFTurn plain text into a clean, downloadable PDF — paste your text, pick the page and font size, and save a real PDF, all in your browser.Rotate PDFRotate every page in a PDF or just the ones you pick — 90, 180 or 270 degrees — and download the fixed file, all in your browser with no upload.Watermark PDFStamp a text or logo watermark across every page of a PDF — position, size, opacity and tiling — all in your browser with no upload.Sign PDFDraw or upload a signature and place it on any page of a PDF, then download the signed file, all in your browser with no upload.Add Page NumbersAdd page numbers to a PDF — pick the position, format and starting number — and download the result, all in your browser with no upload.PDF Metadata Viewer & RemoverView a PDF's title, author and other hidden metadata, edit it or strip it out entirely, all in your browser with no upload.Compress PDFShrink a PDF's file size by re-rendering its pages at a lower quality — pick Low, Medium or High and download the smaller file, all in your browser with no upload.Protect PDFAdd a password to a PDF so it can't be opened without it — set a password and download the protected file, all in your browser with no upload.Unlock PDFRemove a known password from a protected PDF — enter the password and download the unlocked file, all in your browser with no upload.Flatten PDFFlatten a PDF's fillable form fields into regular page content so they can no longer be edited, all in your browser with no upload.OCR PDFTurn a scanned PDF into a searchable one — OCR reads the text on each page and adds a hidden text layer so you can select, copy and search it, all in your browser with no upload.PDF to WordConvert a PDF's text into an editable Word document — extract the words and paragraphs into a .docx you can edit, all in your browser with no upload.PDF to ZIPBundle multiple PDF files into a single ZIP archive — add your PDFs and download them together, all in your browser with no upload.PDF Header & FooterAdd a custom header and footer — with text, page numbers or the date — to every page of a PDF, all in your browser with no upload.Crop & Resize PDFTrim the margins on every page of a PDF or resize it to a standard size like A4 or Letter, all in your browser with no upload.Markdown to PDFConvert Markdown into a clean, paginated PDF — headings, lists, tables and code blocks rendered properly, all in your browser with no upload.Compare PDFsCompare two PDF files side by side with synced scrolling, or diff their extracted text to spot every change, all in your browser with no upload.PDF to AudioListen to any PDF read aloud using your browser's built-in text-to-speech voices, all in your browser with no upload.GST Filing PrepShrink and split scanned PDFs to fit the GST portal's upload size limit — for SCN replies, appeals and other attachments, all in your browser with no upload.Repair PDFAttempt to fix a corrupted, truncated or broken PDF by rebuilding it page by page, all in your browser with no upload.Scan DocumentUse your camera to scan a document and save it as a PDF — capture multiple pages, reorder them and download, all in your browser with no upload.Invert PDF ColorsRecolor a PDF for easier reading — dark mode, sepia, grayscale or high contrast — with a live preview, all in your browser with no upload.Fill PDF FormFill in a fillable PDF form's text fields, checkboxes and dropdowns, then lock in the answers, all in your browser with no upload.Redact PDFDraw a box over anything sensitive to permanently remove it from a PDF — not just cover it up, all in your browser with no upload.Auto-Redact PIIAutomatically find and permanently redact Aadhaar numbers, PAN, card numbers, emails and phone numbers in a PDF, all in your browser with no upload.Privacy Risk ScannerScan a PDF for exposed Aadhaar, PAN, card numbers and hidden metadata, then export a fully redacted and scrubbed copy, all in your browser with no upload.CSV ↔ PDF ConverterTurn a CSV file into a formatted PDF table, or pull a table out of a PDF back into CSV, all in your browser with no upload.HTML to PDFConvert HTML code or an .html file into a PDF, keeping your own styles, all in your browser with no upload.PDF to HTMLConvert a PDF to HTML — reflowable semantic text or pixel-accurate positioned layout — all in your browser with no upload.PDF to EPUBConvert a PDF into a portable EPUB eBook, ready for any e-reader, all in your browser with no upload.PDF to PowerPointConvert a PDF into a PowerPoint presentation — each page becomes a full-page slide, all in your browser with no upload.Word to PDFConvert a .docx Word document into a PDF, all in your browser with no upload.Excel to PDFConvert an .xlsx spreadsheet into a PDF — every sheet starts a new page, with number and date formats, bold and cell colours kept, all in your browser with no upload.PDF to ExcelExtract a table from a PDF into an editable .xlsx spreadsheet, all in your browser with no upload.eBook to PDFConvert an EPUB, TXT or HTML eBook into a beautifully typeset PDF, all in your browser with no upload.PDF to HandwritingTurn a PDF's text into realistic handwritten-style notes on ruled paper, all in your browser with no upload.Edit PDFAdd text anywhere on a PDF or cover up a mistake with a white box, all in your browser with no upload.PDF Workflow BuilderChain multiple PDF operations — compress, rotate, watermark, page numbers and more — and run them all in one click, all in your browser with no upload.
EMI CalculatorCalculate your monthly loan EMI, total interest and total payable from the loan amount, interest rate and tenure — instant results, all in your browser.Percentage CalculatorWork out percentages the easy way — what is X% of Y, X is what percent of Y, and percentage increase or decrease — all in your browser, instantly.Discount CalculatorCalculate the sale price and how much you save from a price and discount percentage — or work out the discount from the original and sale price, all in your browser.BMI CalculatorCalculate your Body Mass Index from your height and weight in metric or imperial units — see your BMI category and healthy weight range, all in your browser.Age CalculatorFind your exact age in years, months and days from your date of birth — plus a countdown to your next birthday, all calculated in your browser.Date Difference CalculatorCalculate the number of days, weeks and months between two dates, or add and subtract days from a date — all in your browser with no upload.GST / Tax CalculatorAdd or remove GST, VAT or sales tax from an amount — enter a rate or pick a preset and see the tax and net or gross total instantly, all in your browser.Tip CalculatorWork out the tip and total on a bill, and split it between any number of people — see the per-person amount instantly, all in your browser.Interest CalculatorCalculate simple and compound interest from a principal, rate and time — compare the two and choose the compounding frequency, all in your browser.Unit ConverterConvert between units of length, weight, temperature, volume, area and speed — pick a category and see the result instantly, all in your browser.Calorie CalculatorEstimate your daily calorie needs (TDEE) from your age, height, weight and activity level using the Mifflin–St Jeor formula, all in your browser.SIP CalculatorEstimate the maturity value of a monthly SIP investment from the amount, expected return and duration — see invested vs. returns, all in your browser.Salary to Hourly CalculatorConvert a salary between yearly, monthly, weekly, daily and hourly pay based on your hours per week and weeks per year, all in your browser.Hours CalculatorWork out the hours and minutes between a start and end time (minus breaks) as HH:MM and decimal hours, or add and subtract durations, all in your browser.Fuel Cost CalculatorCalculate trip fuel cost, cost per km, and monthly/annual fuel spend from your mileage and fuel price — supports km/L and L/100km, all in your browser.CGPA & Grade CalculatorConvert marks to percentage and grade, or calculate your weighted CGPA from subject credits and grade points — supports 10-point and 4-point scales.Loan Eligibility CalculatorFind the maximum loan amount you are eligible for based on your income, existing EMIs and FOIR — with an EMI affordability reverse mode, all in your browser.Currency ConverterConvert between 150+ currencies using up-to-date exchange rates — pick source and target, enter an amount and see the result instantly, all in your browser.FD / RD CalculatorCalculate the maturity value and interest earned on a fixed deposit or recurring deposit — choose compounding frequency, all in your browser.Retirement CalculatorEstimate the corpus you need for retirement and how much to save each month — factor in inflation, expected returns and years to retire, all in your browser.Speed / Distance / TimeSolve for speed, distance or time given the other two — supports km/h, mph, m/s and multiple time formats, all calculated instantly in your browser.
QR Code GeneratorCreate QR codes for links, text and Wi-Fi networks — customize size and colors, then download as PNG or SVG, all generated in your browser.Password GeneratorGenerate strong random passwords with custom length and character options — with a strength meter, created securely in your browser and never sent anywhere.UUID GeneratorGenerate random v4 or time-ordered v7 UUIDs — one or up to 100 at a time, with uppercase and no-hyphen options, all created in your browser.Base64 Encoder & DecoderEncode text to Base64 or decode Base64 back to text — UTF-8 safe with a URL-safe option, converted instantly in your browser with nothing uploaded.URL Encoder & DecoderPercent-encode or decode URLs and query strings — encode a single value or a full URL, converted instantly in your browser with nothing uploaded.Hash GeneratorGenerate SHA-256, SHA-512 and SHA-1 hashes of any text at once — computed instantly in your browser with Web Crypto, nothing is uploaded.File Hash CheckerGenerate MD5, SHA-1 and SHA-256 checksums for any file and verify it against a known hash — computed instantly in your browser, nothing is uploaded.JWT DecoderDecode a JSON Web Token's header and payload with readable dates and an expiry check — entirely in your browser, so your token never leaves your device.JSON FormatterPretty-print, minify and validate JSON with the exact line and column of any error — formatted instantly in your browser, nothing is uploaded.Unix Timestamp ConverterConvert Unix timestamps to readable dates and back — seconds or milliseconds auto-detected, with local, UTC and ISO 8601 output, all in your browser.Color ConverterConvert colors between HEX, RGB and HSL with a live swatch and contrast check — paste any format or use the picker, all in your browser.Regex TesterTest regular expressions against sample text with live match highlighting, capture groups and flags — JavaScript flavour, running entirely in your browser.GSTIN ValidatorValidate any GSTIN — checks format, state code, embedded PAN, and the MOD-11 checksum, with a full breakdown of each segment. Bulk validation supported.PAN & Aadhaar ValidatorCheck the format of any PAN (structure + entity type) or Aadhaar (Verhoeff checksum) — a client-side format check, no government database lookup.Cron Expression GeneratorBuild or decode cron expressions visually — edit any field, use @yearly/@daily shortcuts, and see the next 5 scheduled run times, all in your browser.Number Base ConverterConvert numbers between binary, octal, decimal and hexadecimal — type in any base and see all others update live, all in your browser.HTML Encoder & DecoderEncode special characters to HTML entities (&, <, >, &#x…) or decode them back to plain text — instantly in your browser with nothing uploaded.XML FormatterPretty-print and validate XML with the exact line and column of any error — formatted instantly in your browser, nothing is uploaded.JSON DiffCompare two JSON objects and see exactly what changed — added, removed and modified keys highlighted side by side, all in your browser with no upload.HTTP Status CodesA searchable reference for all HTTP status codes — 1xx to 5xx — with name, description and common use cases, all in your browser.CSS / JS MinifierMinify CSS or JavaScript to reduce file size — strip comments, whitespace and shorten identifiers, then copy or download the output, all in your browser with no upload.
CSS Gradient GeneratorBuild linear, radial or conic CSS gradients visually — add colour stops, set direction and angle, get instant preview and copy the ready-to-paste CSS, all in your browser.Box Shadow GeneratorCreate single or layered CSS box shadows with live controls for offset, blur, spread, colour and inset — preview on a card and copy the CSS in one click.Color Palette GeneratorGenerate a 5-colour palette from a seed colour (complementary, analogous, triadic and more) or extract dominant colours from any image — copy hex/RGB/HSL or download as a PNG swatch sheet.Contrast CheckerCheck foreground/background colour contrast against WCAG 2.1 AA and AAA — live preview text on the chosen background with a one-click fix for failing combinations.Gradient PaletteInterpolate between two colours in linear-RGB space (perceptually smooth) — choose 4–20 steps, copy as CSS gradient or hex list, or download as a PNG colour strip.Border Radius GeneratorSet individual corner radii or use the elliptical mode — live preview, px/% toggle, and one-click CSS copy for any shape from pill to leaf, all in your browser.Clip-path GeneratorBuild CSS clip-path shapes visually — drag handles to define polygon, circle or ellipse paths, see a live preview and copy the ready-to-paste CSS, all in your browser.Cubic Bézier GeneratorDesign custom CSS easing curves by dragging the Bézier control points — see an animated preview, compare to built-in easings and copy the cubic-bezier() value.Typography Scale GeneratorPick a base font size and a modular ratio to generate a complete type scale — preview every step rendered live and copy the CSS custom properties, all in your browser.Flexbox PlaygroundExperiment with every flexbox property — direction, wrap, justify-content, align-items and more — with a live preview and copy the generated CSS, all in your browser.Spacing Scale GeneratorGenerate a consistent spacing scale from a base unit and ratio — preview each step as a coloured bar and copy as CSS custom properties or a Tailwind config, all in your browser.
Tone GeneratorGenerate a pure tone at any frequency (20 Hz – 20 kHz) with sine, square, sawtooth or triangle waveform — displays the musical note and cents deviation, all in your browser.MetronomeA synthesised-click metronome with BPM (20–300), time signature, accent-on-first-beat, visual beat indicator and tap-to-tempo — powered by Web Audio API, all in your browser.Text to SpeechConvert any text to speech using your browser's built-in voices — choose voice, language, speed and pitch, then play, pause or stop, all in your browser with no upload.Audio RecorderRecord audio from your microphone directly in the browser — watch a live waveform, then download the recording as a WebM file. No upload, no account needed.BPM TapperTap any key or button in time with a song to instantly calculate the BPM (beats per minute). No audio, no mic — pure timing in your browser.Noise GeneratorGenerate white, pink or brown noise for focus, sleep or masking distractions — control volume and visualise the waveform, all powered by Web Audio API in your browser.Spectrum AnalyzerSee a real-time frequency spectrum of any sound from your microphone — bar or line FFT view, all processed in your browser via Web Audio API with no upload.Pitch ShifterUpload an audio file and shift its pitch up or down in semitones without changing the tempo — preview and download the result, all in your browser with no upload.Audio TrimmerUpload an audio file, drag the start and end handles to select the clip you want and download the trimmed audio — all in your browser with no upload.
Why PapaTools?
Private by designEverything runs in your browser — your files and details never leave your device.
Instant resultsNo uploads, queues or processing servers — tools respond the moment you act.
Free, no sign-upEvery tool is completely free — no accounts, no watermarks, no daily limits.
Works everywhereNothing to install — use every tool on your phone, tablet or laptop.
Frequently asked questions
Are these tools really free?
Yes — every tool is completely free, with no sign-up, no watermarks and no daily limits. Use them as often as you like.
Do my files get uploaded anywhere?
No. Every tool runs entirely in your browser, so your photos, PDFs and personal details never leave your device or touch a server.
Do I need to install or sign up for anything?
No installs and no accounts. Open the tool in any modern browser on your phone, tablet or laptop and start using it right away.
Is there a limit on file size or how many files I can process?
There are no artificial limits. Because everything is processed on your own device, the only ceiling is your device's available memory.
Can I use the results for work or commercial projects?
Absolutely. Whatever you create or convert is yours to use anywhere — personal or commercial, no attribution required.
You're missing a tool I need — can you add it?
Very likely! We add new tools all the time. Tell us what would save you time and we'll look into building it.
Missing a tool you need?
We add new tools all the time — tell us what would save you time and we'll look into building it.