All 180 tools

Everything on the site, grouped by category. Every one of them runs in your browser — your files are never uploaded to anything.

PDF 19

Merge, split, sign, protect and convert PDF documents.

• Merge PDFCombine several PDFs into one document, in the order you choose.
• Split PDFSplit a PDF into single pages, fixed-size chunks or custom ranges.
• Extract, Delete & Reorder PagesKeep, remove, duplicate or reorder pages in a PDF.
• Rotate PDFRotate every page or just a selection to fix sideways scans.
• Compress PDFReduce PDF size by re-rendering pages at a lower resolution and quality.
• PDF to ImagesRender PDF pages as PNG, JPEG or WebP images at any resolution.
• Images to PDFTurn photos and scans into a single PDF with control over page size.
• PDF to TextExtract the text layer from a PDF, with layout or plain output.
• Scanned PDF to Text (OCR)Read text out of scanned PDFs and images using in-browser OCR.
• Watermark PDFStamp text across PDF pages — DRAFT, CONFIDENTIAL or your own wording.
• Add Page Numbers & HeadersNumber PDF pages and add headers or footers with custom text.
• Password Protect PDFEncrypt a PDF with a password and set what readers are allowed to do.
• Unlock PDFRemove a known password from a PDF so it opens without prompting.
• PDF Metadata EditorView and rewrite the title, author, subject and keywords of a PDF.
• Text & Markdown to PDFTurn plain text or Markdown into a properly typeset PDF.
• Sign PDFDraw or type a signature and place it on any page of a PDF.
• Redact PDFBlack out regions of a PDF so the text underneath is genuinely gone.
• Word to PDFConvert a Word .docx document into a PDF.
• PDF to WordTurn a PDF into an editable Word .docx document.

Image 22

Compress, convert, resize, crop and retouch pictures.

• Image CompressorShrink image file size with a quality slider or a target file size.
• Image ResizerResize images by pixels, percentage or to fit inside a box.
• Image Format ConverterConvert between PNG, JPEG, WebP, AVIF, BMP, HEIC and SVG raster output.
• Image CropperCrop to an aspect ratio, exact pixels, or a centred square.
• Rotate & Flip ImageRotate by any angle and mirror images horizontally or vertically.
• Image Filters & AdjustmentsAdjust brightness, contrast, saturation, blur and apply photo presets.
• Image WatermarkStamp text or a logo onto images, once or tiled across the frame.
• Meme GeneratorAdd classic top and bottom caption text to any image.
• Pixelate / Blur ImagePixelate or blur a whole image, or just a rectangular region.
• Add Border to ImageAdd a coloured border, padding or rounded corners around an image.
• Merge ImagesCombine several images into a strip or grid collage.
• Image SplitterSlice an image into a grid of tiles — great for Instagram carousels.
• Favicon GeneratorBuild a full favicon set with every size a site needs, plus the HTML.
• Image Colour PalettePull the dominant colours out of a photo as a usable palette.
• Image to ASCII ArtTurn a photo into ASCII art you can paste anywhere.
• Image Metadata & EXIF ViewerInspect EXIF, camera settings, GPS and other embedded image metadata.
• Remove Image MetadataStrip EXIF, GPS and all embedded metadata by re-encoding the pixels.
• Placeholder Image GeneratorCreate solid or gradient placeholder images with size labels.
• Image Difference CheckerHighlight the pixels that differ between two similar images.
• Background RemoverRemove a plain or uniform background and save a transparent PNG.
• Image UpscalerEnlarge an image with smooth resampling and edge sharpening.
• Screenshot BeautifierPut a screenshot on a gradient backdrop with rounded corners and a shadow.

Audio & Video 13

Trim, convert and extract audio and video.

• Audio ConverterConvert audio between formats, change sample rate and channels.
• Audio Trimmer & CutterCut a section out of an audio file, with optional fades.
• Audio MergerJoin several audio files end to end, with optional crossfades.
• Audio Speed, Pitch & VolumeChange playback speed, adjust volume, reverse audio or trim silence.
• Audio Waveform ImageRender an audio file as a waveform graphic for thumbnails and posts.
• Extract Audio from VideoPull the soundtrack out of a video and save it as MP3 or WAV.
• Video Frame ExtractorGrab still frames from a video at set intervals or one exact moment.
• Video to GIFTurn a clip of a video into an animated GIF.
• Audio & Video InfoInspect duration, resolution, sample rate and other media properties.
• Screen RecorderRecord your screen, a window or a browser tab and save it as a video.
• Voice & Audio RecorderRecord from your microphone and save it as MP3 or WAV.
• Text to SpeechRead text aloud using the voices installed on your device.
• GIF MakerTurn a set of images into an animated GIF.

Text 25

Count, clean, compare and transform writing.

• Word CounterCount words, characters, sentences and estimated reading time.
• Case ConverterSwitch text between upper, lower, title, camel, snake, kebab and more.
• Text ReverserReverse text by character, word or line order.
• URL Slug GeneratorTurn titles into clean, URL-safe slugs.
• Find & ReplaceSearch and replace across text, with optional regular expressions.
• Line SorterSort lines alphabetically, numerically, by length or at random.
• Duplicate Line FinderFind, remove or isolate repeated lines in a list.
• Random Line PickerPick random lines from a list — draws, raffles and sampling.
• Text CleanerStrip extra spaces, blank lines, line breaks and invisible characters.
• Text RepeaterRepeat text a set number of times with custom separators.
• Diff CheckerCompare two blocks of text and highlight every difference.
• Markdown to HTMLConvert Markdown into clean HTML, with a live preview.
• HTML to MarkdownConvert HTML markup back into readable Markdown.
• Morse Code TranslatorTranslate between plain text and Morse code, in either direction.
• Caesar Cipher / ROT13Shift letters by a fixed amount — ROT13 and classic Caesar ciphers.
• Leet Speak ConverterConvert text to and from 1337 5p34k.
• ASCII Banner GeneratorTurn short text into big ASCII-art letters for banners and READMEs.
• Lorem Ipsum GeneratorGenerate placeholder paragraphs, sentences, words or list items.
• URL ParserBreak a URL into its parts and decode every query parameter.
• Character CounterCount characters against the limits of every major platform, live.
• Readability Score CheckerScore how easy your writing is to read with Flesch, Gunning Fog and more.
• Number to Words ConverterSpell out numbers in words, including currency for cheques and invoices.
• Bionic Reading ConverterBold the leading letters of each word to guide the eye while reading.
• NATO Phonetic Alphabet ConverterSpell text using the NATO phonetic alphabet — Alpha, Bravo, Charlie.
• Emoji Search & CopyFind an emoji by name or feeling and copy it with one click.

Code & Data 25

Format, minify and convert JSON, YAML, CSV and XML.

• JSON Formatter & ValidatorPretty-print, validate and minify JSON with clear error positions.
• JSON Path FinderList every path in a JSON document, or query it with a dot path.
• YAML ⇄ JSON ConverterConvert YAML to JSON and back, in either direction.
• XML FormatterPretty-print, validate or minify XML documents.
• XML ⇄ JSON ConverterConvert XML into JSON and JSON back into XML.
• CSV ⇄ JSON ConverterConvert CSV to JSON records and JSON arrays back to CSV.
• CSV Formatter & ViewerClean up CSV, change delimiters and preview it as a table.
• SQL FormatterFormat SQL queries with consistent keyword casing and indentation.
• CSS Minifier & BeautifierShrink CSS for production or expand it back for editing.
• JavaScript MinifierMinify JavaScript with Terser, including optional name mangling.
• HTML MinifierStrip comments and needless whitespace from HTML markup.
• Regex TesterTest regular expressions live and inspect every match and capture group.
• JWT DecoderDecode a JSON Web Token and inspect its header, claims and expiry.
• Cron Expression BuilderBuild a cron schedule from plain fields and read back what it means.
• HTML Formatter & BeautifierIndent and tidy messy or minified HTML into readable markup.
• JavaScript Formatter & BeautifierReformat minified or messy JavaScript into readable code.
• JSON to TypeScript, Go & PythonTurn a JSON sample into typed interfaces, structs or dataclasses.
• JSON DiffCompare two JSON documents and list every added, removed or changed value.
• curl to Code ConverterTurn a curl command into fetch, axios, Python requests or Go code.
• String Escape & UnescapeEscape or unescape strings for JavaScript, JSON, SQL, shell, CSV and regex.
• Query String ⇄ JSONConvert a URL query string into JSON and back again.
• TOML ⇄ JSON ConverterConvert TOML configuration to JSON and back.
• .env ⇄ JSON ConverterConvert environment files to JSON, YAML or a docker-compose block.
• Markdown Table GeneratorTurn CSV, TSV or JSON into a formatted Markdown or HTML table.
• HTTP Status Code ReferenceLook up any HTTP status code and what it actually means in practice.

Converters 9

Encodings, number bases, colours and units.

• Base64 Encoder / DecoderEncode text to Base64 or decode it back, with URL-safe support.
• Image to Base64 / Data URITurn an image into a Base64 data URI for CSS, HTML or JSON.
• URL Encoder / DecoderPercent-encode text for URLs, or decode an encoded string.
• HTML Entity Encoder / DecoderEscape HTML special characters, or turn entities back into text.
• Number Base ConverterConvert numbers between binary, octal, decimal, hex and any base up to 36.
• Text ⇄ Binary / HexConvert text to binary, hexadecimal or decimal byte values, and back.
• Colour ConverterConvert a colour between HEX, RGB, HSL, CMYK and named values.
• Colour Contrast CheckerCheck text and background contrast against WCAG AA and AAA levels.
• Unicode Character InspectorBreak text into code points and find invisible or look-alike characters.

CSS & Design 17

Generate gradients, shadows, layouts and palettes.

• Box Shadow GeneratorDesign CSS box shadows visually and copy the rule.
• Text Shadow GeneratorCreate CSS text shadows, glows and outlines with a live preview.
• CSS Gradient GeneratorBuild linear, radial and conic gradients with up to five colour stops.
• Border Radius GeneratorShape corners individually, including organic blob shapes.
• Flexbox GeneratorExperiment with flex properties and see the layout change instantly.
• CSS Grid GeneratorLay out CSS Grid templates and copy the generated rules.
• Glassmorphism GeneratorCreate frosted-glass card effects with backdrop blur.
• Clip Path GeneratorCut elements into polygons, circles and custom shapes with clip-path.
• CSS Easing & AnimationPick a timing curve, watch it animate, and copy the transition rule.
• Colour Palette GeneratorBuild harmonious palettes and tint scales from one base colour.
• CSS Unit ConverterConvert between px, rem, em, pt, %, vw and vh.
• Content Security Policy GeneratorBuild a Content-Security-Policy header with sensible defaults.
• Media Query GeneratorGenerate responsive breakpoints for common device sizes and frameworks.
• CSS Specificity CalculatorScore CSS selectors and see which one wins a conflict.
• SVG to CSS BackgroundTurn an SVG into an inline data URI for CSS, HTML or a mask.
• Neumorphism GeneratorCreate soft extruded and inset shadow effects.
• CSS Filter GeneratorBuild CSS filter and backdrop-filter chains with a live preview.

Security 14

Hash, encrypt and inspect files and secrets.

• Hash GeneratorGenerate MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text.
• File Checksum GeneratorCompute file checksums and verify a download against a known hash.
• HMAC GeneratorSign a message with a secret key using HMAC.
• Text EncryptorEncrypt and decrypt text with AES-256-GCM and a passphrase.
• Password Strength CheckerEstimate how long a password would take to crack, entirely offline.
• File EncryptorEncrypt any file with AES-256 and a passphrase, then decrypt it later.
• Base32 Encoder / DecoderEncode and decode Base32, the format used by TOTP keys and DNS records.
• TOTP / 2FA Code GeneratorGenerate the current two-factor code from a TOTP secret key.
• Bcrypt Hash Generator & VerifierHash a password with bcrypt, or check a password against an existing hash.
• htpasswd GeneratorCreate Apache or nginx .htpasswd entries for basic authentication.
• JWT Encoder / SignerBuild and sign a JSON Web Token with HMAC.
• RSA & ECDSA Key Pair GeneratorGenerate a public and private key pair in PEM format.
• Hash IdentifierWork out which algorithm produced a hash from its shape.
• Card Number Validator & Test NumbersCheck a card number with the Luhn algorithm and generate valid test numbers.

Generators 9

QR codes, passwords, UUIDs, placeholder data.

• QR Code GeneratorCreate QR codes for links, Wi-Fi, contacts, email and plain text.
• Barcode GeneratorGenerate EAN, UPC, Code 128, Code 39 and other retail barcodes.
• Password GeneratorGenerate strong random passwords or memorable passphrases.
• UUID GeneratorGenerate cryptographically random UUIDs, ULIDs and nano IDs in bulk.
• Test Data GeneratorGenerate realistic fake records for testing, as JSON, CSV or SQL.
• Avatar & Identicon GeneratorGenerate a unique deterministic avatar from any name or email.
• Social Share Image GeneratorCreate a 1200×630 Open Graph card for links shared on social media.
• Signature GeneratorDraw or type a signature and save it as a transparent PNG.
• Invoice GeneratorFill in a form and download a clean PDF invoice.

SEO & Web 8

Meta tags, schema, sitemaps and content checks.

• Meta Tag GeneratorGenerate title, description, Open Graph and Twitter Card tags at once.
• Schema Markup GeneratorBuild JSON-LD structured data for articles, products, FAQs and more.
• robots.txt GeneratorBuild a robots.txt file with crawl rules and a sitemap reference.
• XML Sitemap GeneratorTurn a list of URLs into a valid XML sitemap with priorities.
• Keyword Density CheckerAnalyse word and phrase frequency to spot thin or over-optimised copy.
• UTM Campaign BuilderBuild tagged campaign URLs that analytics tools can attribute.
• HTML Heading AnalyserCheck heading hierarchy, link counts and image alt text in HTML.
• Hreflang Tag GeneratorGenerate hreflang tags so search engines serve the right language.

Date & Time 7

Timestamps, differences, ages and time zones.

• Unix Timestamp ConverterConvert Unix timestamps to readable dates and back, in any time zone.
• Date Difference CalculatorWork out the time between two dates, with or without weekends.
• Age CalculatorCalculate exact age in years, months, days — and the next birthday.
• Time Zone ConverterSee what one moment in time looks like across several time zones.
• Duration CalculatorAdd or subtract time from a date, or convert between duration units.
• Cron Expression ParserExplain what a cron expression means and when it will next run.
• Countdown TimerCount down to a date and see exactly how long is left.

Math & Units 12

Convert units and run everyday calculations.

• Unit ConverterConvert length, weight, temperature, volume, data, speed and more.
• Percentage CalculatorWork out percentages, increases, discounts and percentage change.
• Aspect Ratio CalculatorScale dimensions while keeping the aspect ratio, or identify a ratio.
• Statistics CalculatorMean, median, mode, standard deviation and quartiles for a set of numbers.
• Random Number GeneratorDraw random numbers, dice rolls or lottery picks using secure randomness.
• Roman Numeral ConverterConvert between Roman numerals and ordinary numbers.
• Loan & EMI CalculatorWork out monthly repayments, total interest and an amortisation schedule.
• Compound Interest CalculatorSee how savings or investments grow with regular contributions.
• BMI CalculatorCalculate body mass index in metric or imperial units.
• Discount & Sale Price CalculatorWork out sale prices, savings, stacked discounts and tax.
• GPA CalculatorCalculate a weighted grade point average from your courses.
• Fraction Calculator & ConverterAdd, subtract, multiply and divide fractions, or convert to and from decimals.