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Convert Filez
253 tools. Zero uploads.

Free online file conversion tools that run in your browser

Convert images, compress PDFs, reshape data and edit media, all inside your browser. Nothing uploads, so your files stay on your device and results appear instantly.

Explore all 253 toolsStart with images
Working tools
253
Categories
10
Bytes uploaded
0
Cost to use
$0

Most used

Popular tools

Browse everything
Image Conversion

PNG to JPG Converter

Convert PNG images to JPG in your browser with adjustable quality and a custom background behind transparency.

Image Conversion

WebP to PNG Converter

Convert WebP images to PNG in your browser, keeping full transparency and resolution, with no upload step.

Image Editing

Image Compressor

Compress JPG, PNG and WebP images in your browser with a quality slider that shows the before and after file size as you drag.

PDF And Documents

Merge PDF Files

Merge PDF files in your browser, drag them into any order and download one combined document with nothing ever uploaded.

Developer Tools

SVG to React Component Converter

Paste or upload an SVG and get back a typed React component with camelCase props, forwarded refs and a memo option.

Text And Writing

Word Counter

Count words, characters, sentences and paragraphs live as you type, with reading time, speaking time and a top keyword table.

Data And Formats

JSON to CSV Converter

Convert a JSON array or object into a CSV file in your browser, with dot notation flattening for nested data and a choice of delimiter.

Audio And Video

Video to GIF Converter

Capture frames from a video clip between two times, quantise a palette and encode a looping GIF entirely in your browser.

Color And Design

Color Contrast Checker

Check the WCAG contrast ratio between two colours with pass or fail results for AA and AAA at normal text, large text and UI components.

Security And Encoding

JWT Decoder

Decode a JWT header and payload, pretty print every claim and see exp, iat and nbf as human readable dates with an expired indicator.

Web And SEO

Meta Tag Generator

Build a complete set of HTML meta tags, from title and description to Open Graph and Twitter card, with live character counters and one click copy.

Image Conversion

AVIF to JPG Converter

Convert AVIF images to JPG in your browser with a background colour control, and a clear note on browser decode support.

Image Conversion

AVIF to PNG Converter

Convert AVIF images to lossless PNG in your browser, keeping the alpha channel and every pixel dimension intact.

Image Conversion

AVIF to WebP Converter

Re encode AVIF images as WebP in your browser with adjustable quality, keeping transparency and full pixel dimensions.

Image Conversion

Base64 to Image Converter

Paste a Base64 string or data URI and decode it back into a downloadable image in your browser.

Image Conversion

BMP to JPG Converter

Convert BMP images to JPG in your browser with adjustable quality and a custom background behind any transparency.

Image Conversion

BMP to PNG Converter

Convert BMP bitmap images to compressed PNG in your browser, shrinking the file with no visible quality loss.

Image Conversion

GIF to PNG Converter

Convert the first frame of a GIF to a lossless PNG in your browser, with no upload and no animation lost silently.

The catalogue

Every tool, grouped by category

Image Conversion
25tools

Convert between every common image format without uploading a single byte. These image conversion tools decode and re encode your files locally using the browser canvas and WebAssembly codecs, so your photos never leave your device.

AVIF to JPG ConverterAVIF to PNG ConverterAVIF to WebP ConverterBase64 to Image ConverterBMP to JPG ConverterBMP to PNG ConverterGIF to PNG ConverterGIF to WebP ConverterHEIC to JPG ConverterHEIC to PNG ConverterHEIC to WebP ConverterICO to PNG ConverterImage to Base64 ConverterJPG to AVIF ConverterJPG to PNG ConverterJPG to WebP ConverterPNG to AVIF ConverterPNG to ICO ConverterPNG to JPG ConverterPNG to WebP ConverterSVG to JPG ConverterSVG to PNG ConverterSVG to WebP ConverterWebP to JPG ConverterWebP to PNG Converter
All image conversion
Image Editing
25tools

Resize, crop, compress, rotate and retouch images without installing anything. These image editing tools give you precise pixel control in the browser and export at full quality with no watermark attached.

Add Text to Image ToolBulk Image ResizerCircle Crop Image ToolFavicon GeneratorGrayscale Image ConverterImage Blur ToolImage Border GeneratorImage Brightness AdjusterImage Collage MakerImage Color PickerImage CompressorImage Contrast AdjusterImage CropperImage FlipperImage Invert Colors ToolImage Opacity ChangerImage PixelatorImage ResizerImage RotatorImage Saturation AdjusterImage SharpenerMeme GeneratorPhoto Watermark ToolRound Image Corners ToolSepia Filter Tool
All image editing
PDF And Documents
25tools

Merge, split, compress, rotate and convert documents entirely in the browser. These PDF and document tools keep contracts, invoices and reports on your own machine, which matters when the file contains anything confidential.

Add Page Numbers to PDFCompress PDFCrop PDF PagesCSV to PDF ConverterDelete PDF PagesDuplicate PDF PagesExtract PDF PagesExtract Text from PDFHTML to PDF ConverterImages to PDF ConverterInsert Blank Page in PDFJSON to PDF ConverterMarkdown to PDF ConverterMerge PDF FilesPDF Bookmark ViewerPDF Form Field ViewerPDF Metadata ViewerPDF Page CounterPDF Page ResizerPDF to Images ConverterPDF Watermark ToolReorder PDF PagesRotate PDF PagesSplit PDF PagesText to PDF Converter
All pdf and documents
Developer Tools
26tools

Format, minify, validate and convert code without leaving the browser tab. These developer tools handle the small transformations that interrupt a build, from prettifying a JSON payload to turning an SVG into a React component.

Code Diff CheckerCron Expression ParserCrontab GeneratorCSS FormatterCSS MinifierCSS to Tailwind Convertercurl to fetch ConverterHTML FormatterHTML MinifierHTML to JSX ConverterHTML to Markdown ConverterHTTP Status Code LookupJavaScript FormatterJavaScript MinifierJSON FormatterJSON MinifierJSON to Go Struct ConverterJSON ValidatorJSONPath TesterMarkdown to HTML ConverterRegex TesterSQL FormatterSVG OptimizerSVG to React Component ConverterUser Agent ParserXML Formatter
All developer tools
Text And Writing
25tools

Count, clean, compare and reshape text with tools built for writers and editors. These text and writing tools process everything locally, which makes them safe for drafts, transcripts and anything under embargo.

Case ConverterCharacter CounterFind and Replace TextLine Numbering ToolList RandomizerLorem Ipsum GeneratorMorse Code to Text ConverterNumber to Words ConverterParagraph SplitterRandom Word GeneratorReadability Score CheckerRemove Duplicate LinesRemove Line BreaksReverse Text ToolRoman Numeral ConverterSlug GeneratorText Column FormatterText Diff CheckerText RepeaterText SorterText to Morse Code ConverterText TruncatorUnicode Character ViewerWhitespace RemoverWord Counter
All text and writing
Data And Formats
26tools

Move structured data between JSON, CSV, XML, YAML, TOML and SQL without writing a script. These data and format conversion tools parse strictly, report errors clearly and never upload your records.

CSV Column ExtractorCSV DeduplicatorCSV MergerCSV to JSON ConverterCSV to Markdown Table ConverterCSV to SQL ConverterCSV to TSV ConverterCSV to XML ConverterCSV to YAML ConverterCSV ViewerJSON Diff CheckerJSON FlattenerJSON to CSV ConverterJSON to Markdown Table ConverterJSON to PHP Array ConverterJSON to Query String ConverterJSON to SQL ConverterJSON to TypeScript ConverterJSON to XML ConverterJSON to YAML ConverterNDJSON to JSON ConverterTSV to CSV ConverterXML to CSV ConverterXML to JSON ConverterYAML to CSV ConverterYAML to JSON Converter
All data and formats
Audio And Video
25tools

Convert, trim, extract and compress media using the browser native audio and video stack. These audio and video tools avoid the upload step entirely, which is what makes working with large media files practical online.

Audio Channel SplitterAudio Fade In Out ToolAudio MergerAudio Metadata ViewerAudio Mono ConverterAudio NormalizerAudio Pitch ChangerAudio ReverserAudio Silence RemoverAudio Speed ChangerAudio to WAV ConverterAudio TrimmerAudio Volume BoosterAudio Waveform GeneratorExtract Audio from VideoVideo CropperVideo Frame ExtractorVideo Metadata ViewerVideo MuterVideo RotatorVideo Speed ChangerVideo Thumbnail GeneratorVideo to GIF ConverterVideo to WebM ConverterVideo Trimmer
All audio and video
Color And Design
25tools

Convert color spaces, build palettes, check accessibility contrast and generate gradients. These color and design tools give you exact values you can paste straight into CSS, Figma or a design token file.

Analogous Color GeneratorBox Shadow GeneratorCMYK to RGB ConverterColor Blindness SimulatorColor Contrast CheckerColor MixerColor Name FinderColor Palette GeneratorComplementary Color GeneratorCSS Border Radius GeneratorCSS Gradient GeneratorCSS Text Shadow GeneratorDuotone Image GeneratorHex to HSL ConverterHEX to OKLCH ConverterHEX to RGB ConverterHSL to HEX ConverterHSL to RGB ConverterImage Palette ExtractorMonochromatic Palette GeneratorRandom Color GeneratorRGB to CMYK ConverterRGB to HEX ConverterRGB to HSL ConverterTint and Shade Generator
All color and design
Security And Encoding
25tools

Generate hashes, encode and decode payloads, inspect tokens and create secure credentials. These security and encoding tools use the browser Web Crypto API so secrets are never transmitted over a network.

Base32 Encoder DecoderBase64 Encoder DecoderBinary to Text ConverterCaesar Cipher ToolCRC32 Checksum GeneratorFile Hash CheckerHex to Text ConverterHMAC GeneratorHTML Entity Encoder Decoderhtpasswd GeneratorJWT DecoderJWT GeneratorMD5 Hash GeneratorPassword GeneratorPassword Strength CheckerRandom String GeneratorROT13 Encoder DecoderSHA1 Hash GeneratorSHA256 Hash GeneratorSHA512 Hash GeneratorText to Binary ConverterText to Hex ConverterURL Encoder DecoderURL ParserUUID Generator
All security and encoding
Web And SEO
26tools

Generate meta tags, structured data, robots directives and campaign links that are valid the first time. These web and SEO tools produce output that matches the current specifications rather than advice from a decade ago.

Anchor Text AnalyzerArticle Schema GeneratorBreadcrumb Schema GeneratorCanonical Tag GeneratorFAQ Schema GeneratorHeading Structure AnalyzerHreflang Tag GeneratorHtaccess Redirect GeneratorKeyword Density CheckerLocal Business Schema GeneratorMeta Description Length CheckerMeta Tag GeneratorNofollow Link GeneratorOG Image Size CheckerOpen Graph Preview GeneratorProduct Schema GeneratorQR Code GeneratorRobots Meta Tag GeneratorRobots TXT GeneratorRSS Feed GeneratorSchema Markup GeneratorSERP Snippet Preview ToolSitemap XML GeneratorTitle Tag Length CheckerTwitter Card GeneratorUTM Link Builder
All web and seo

Complete index

Every tool on one page

The full catalogue, grouped by category. Every tool is one click from here.

Image Conversion
Image Editing
PDF And Documents
Developer Tools
Text And Writing
Data And Formats
Audio And Video
Color And Design
Security And Encoding
Web And SEO

By the numbers

The catalogue, counted

0

bytes uploaded

There is no upload path in any of the 253 tools. Open the network panel while you convert a file and the request list stays empty.

253

working tools

Across 10 categories, every one shipped rather than announced.

46

input formats

Reading formats that produce 26 output formats across 150 conversion paths.

$0

to use

No account, no trial, no card and no daily cap.

How it works

Three steps, no server in between

  1. 01

    Choose a file

    Drop it on the page or pick it from disk. The browser hands the tool a reference to the file on your own device.

  2. 02

    The work happens in the tab

    Your processor does the decoding and encoding, using the same engines the browser uses to display media. Nothing is queued behind anyone else.

  3. 03

    Download the result

    The output is written straight to your downloads folder. Close the tab and nothing of it remains anywhere.

Who it is for

Built for real work.

Four kinds of work this catalogue was built around. No testimonials, because there are not any yet, just who it is actually for.

Photographers and retouchers

Batch format work

A folder of HEIC files becomes JPEGs without a single upload.

Convert, resize and compress an entire shoot locally, at full quality, with no watermark and no per file cap.

Image conversion

Developers

The small jobs between commits

The detour that interrupts a build, handled in the tab already open.

Format a payload, decode a token, minify a stylesheet or turn an SVG into a typed component without installing a package for a one off.

Developer tools

Legal, finance and admin teams

Documents that cannot leave the building

A contract never touches hardware you do not control.

Merge, split, compress and convert PDFs on your own machine, which is the only version of this that survives a confidentiality review.

PDF and documents

Marketers and SEO teams

Shipping pages that rank

Meta tags, canonicals and Open Graph built in the browser.

Generate the technical markup a page needs and check it before it ships, without a subscription to a suite you use twice a month.

Web and SEO

Instead of testimonials

Three claims you can check yourself

Each one takes under a minute to check yourself.

Nothing you convert is uploaded.

Open the network panel, convert a file, and watch the request list stay empty.

Check the network panelVerifiable

The tools keep working with the network off.

Switch to airplane mode, then convert a file. It finishes exactly the same.

Try it offlineVerifiable

No account, no watermark, no cap.

No signup form exists on the site, no output carries a mark, and the only real size limit is your device's memory.

Look for the signupVerifiable

Questions

Frequently asked questions

Yes, with no account, no trial and no daily cap. The tools run in your browser, so there is no server cost to recover. The site is supported by display advertising alone.

No. Every tool reads your file into browser memory, processes it locally and hands back a download. Nothing is sent over the network or written to a server, and nothing survives closing the tab.

No hard limit. The real ceiling is your device's memory, since the file has to fit in the browser tab while it is processed. Most laptops handle several hundred megabytes comfortably; mobile devices handle less.

No extension, app or plugin. Open the tool, choose a file, download the result.

The catalogue covers 253 tools across images, PDFs, code, text, structured data, audio, video, colour and encoding. Each tool page states exactly which formats it accepts.

Yes. The files are yours, with no watermark, no licensing restriction and no attribution required.

Pick a file. Pick a format. Done in seconds.

No account to create, nothing to install and nothing leaves your machine.

Explore the catalogueDeveloper tools
Convert, compress and transform files directly in your browser. 250+ free online file conversion tools that run client side with no uploads, no signup and no file size limits.