Convert anything. Your files stay with you.
Nothing uploaded. Nothing saved. Every converter runs inside your browser, so your photos, recordings and documents never reach our servers or anyone else’s.
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- Nothing uploaded
- Nothing saved
- No sign-up
- Works offline once loaded
Encoding & Developer
All developer toolsEncode, decode, format and inspect data: Base64, URLs, JSON, CSV, hashes, JWTs, timestamps and more.
- Base64 EncodeTEXT → BASE64Turn any text into Base64.
- Base64 DecodeBASE64 → TEXTPaste a Base64 string to turn it back into normal text.
- Base64 to ImageBASE64 → IMAGEPaste a Base64 string or a full data:image URI to preview the image and download it as a file.
- Image to Base64IMAGE → BASE64Drop an image to get its Base64 in the format you need: a data URI, raw Base64, a CSS background rule or an HTML img tag.
- URL Encode / DecodeTEXT → URLMake text safe to put in a URL, or turn a percent-encoded string like %E2%9C%93 back into readable text.
- HTML Entity Encode / DecodeTEXT → HTMLEscape text so it displays literally in HTML, or decode entities such as &, < and © back into the characters they stand for.
- JSON Formatter & ValidatorJSON → JSONPaste JSON to pretty-print it, minify it, or find out exactly where it’s broken.
- JSON to CSVJSON → CSVTurn a JSON array of objects into a spreadsheet-ready CSV.
- CSV to JSONCSV → JSONPaste CSV from a spreadsheet or export to get clean JSON.
- Unix Timestamp ConverterEPOCH → DATEConvert a Unix timestamp to a readable date, or a date to a timestamp.
- Binary, Hex & Decimal ConverterBIN → HEXType a number in any box and the others update instantly.
- Text to BinaryTEXT → BINARYConvert text into 8-bit binary bytes, or translate binary code back into readable text.
- JWT DecoderJWT → JSONPaste a JSON Web Token to read its header and payload.
- Hash Generator (MD5, SHA-256)TEXT → HASHGet the MD5, SHA-1, SHA-256, SHA-384 and SHA-512 hashes of text or any file at once, and paste a checksum to check if it matches.
- UUID GeneratorRANDOM → UUIDGenerate one or a thousand random v4 UUIDs, formatted the way your code expects.
Text Tools
All text toolsChange case, count words, clean up lists, compare versions and turn text into speech.
- Case ConverterTEXT → CASESwitch text between ten cases with one click, from Title Case for headlines to snake_case and camelCase for code.
- Word CounterTEXT → COUNTPaste or type text to see its word count, character count, sentences, paragraphs and how long it takes to read or say out loud.
- Remove Duplicate LinesLIST → UNIQUEPaste a list to remove repeated lines.
- Sort LinesLIST → SORTEDSort any list alphabetically, in natural order where 2 comes before 10, by length, or shuffle it randomly.
- Text Diff CheckerA + B → DIFFPaste the original and the changed version to see exactly which lines were added, removed or kept.
- Lorem Ipsum GeneratorCOUNT → TEXTGenerate as much placeholder text as your layout needs, as plain text or wrapped in HTML paragraph tags.
- Text to SpeechTEXT → VOICEPaste text and listen to it read aloud.
- Reverse TextTEXT → TXETWrite text backwards, reverse the order of words, flip each word, or turn text upside down for social posts.
Unit Converters
All units toolsConvert length, weight, temperature, area, volume, speed, file sizes, time zones and colors.
- Length ConverterM → FTConvert between metric and imperial lengths, from micrometers to nautical miles.
- Weight ConverterKG → LBConvert between kilograms, pounds, ounces, stone, tonnes and more.
- Temperature Converter°C → °FConvert between Celsius, Fahrenheit, Kelvin and Rankine, with the formula shown for each conversion.
- Area ConverterM² → FT²Convert floor space, land and map areas between metric and imperial units.
- Volume ConverterL → GALConvert liquid and cooking volumes, including US and UK gallons, cups, tablespoons and teaspoons.
- Speed ConverterKM/H → MPHConvert between km/h, mph, meters per second, knots and more.
- File Size ConverterMB → GBConvert between bytes, kilobytes, megabytes, gigabytes and terabytes, in both decimal (1000) and binary (1024) units.
- Time Zone ConverterUTC → LOCALPick a time in one zone and see it in as many other zones as you like.
- Color ConverterHEX → RGBEnter a color in any format, including CSS names, to get every other format and its contrast against white and black.
Image Converters
All image toolsConvert between JPG, PNG and WebP, and compress, resize, crop and rotate images.
- JPG to PNGJPG → PNGConvert JPG photos to lossless PNG.
- PNG to JPGPNG → JPGTurn PNG images into smaller JPG files.
- WebP to PNGWEBP → PNGConvert WebP images to PNG so they open in any app.
- PNG to WebPPNG → WEBPMake PNG images much smaller for your website by converting them to WebP.
- JPG to WebPJPG → WEBPConvert JPG photos to WebP to cut page weight and improve load speed.
- WebP to JPGWEBP → JPGConvert WebP images to JPG so you can open, edit and share them anywhere.
- Compress ImageIMG → SMALLERShrink photos and screenshots by lowering quality, switching format and capping the width.
- Resize ImageIMG → PXResize images to an exact width and height or by percentage.
- Crop ImageIMG → CROPDrag to crop, or type exact pixel values.
- Rotate & Flip ImageIMG → ↻ 90°Fix sideways or upside-down photos, or mirror an image horizontally or vertically.
- SVG to PNGSVG → PNGRender an SVG file or pasted SVG code as a sharp PNG at the exact size you need.
Audio & Video
All audio toolsExtract audio from video, convert audio to WAV, and trim, boost, reverse or speed up sound.
- Video to AudioVIDEO → WAVPull the soundtrack out of a video and save it as a WAV file.
- MP4 to WAVMP4 → WAVConvert MP4 and M4A files to uncompressed WAV for editing, transcription or archiving.
- Audio to WAVAUDIO → WAVConvert compressed audio such as MP3, M4A, OGG or FLAC into WAV that any editor or DAW can open.
- Trim AudioAUDIO → CLIPSelect part of a song or recording on the waveform, add a fade if you like, and save just that part.
- Change Audio VolumeAUDIO → +dBMake a quiet recording louder, turn down a loud one, or normalize it so it peaks just below clipping.
- Reverse AudioAUDIO → OIDUAPlay any sound backwards.
- Change Audio Speed1× → 1.5×Speed up or slow down a recording.
Guides
All guidesPlain-English explanations of file formats, encodings and conversions.
- How to Extract Audio from a Video on Any Device2 MIN READThree free ways to pull the sound out of an MP4, MOV or WebM video on a phone or computer, with no app to install. Includes tips for speech and music.
- WebP vs PNG vs JPG: Which Image Format Should You Use?2 MIN READA plain comparison of JPG, PNG and WebP: file size, quality, transparency and compatibility, with a simple rule for picking the right format.
- How to Reduce Image File Size Without Losing Quality2 MIN READMake photos and screenshots smaller for email, uploads and websites. The three levers that matter: dimensions, format and quality, with recommended settings.
- What Is Base64 Encoding? A Plain-English Guide2 MIN READWhat Base64 is, how it turns bytes into text step by step, why it makes data 33% bigger, and where you meet it: data URIs, email, JWTs and APIs.
- Why Your 1 TB Drive Shows 931 GB: MB vs MiB Explained2 MIN READYour new drive isn’t missing space. Learn the difference between decimal units (GB) and binary units (GiB), and how to convert between them.
- Are Online File Converters Safe? What Happens to Your Files2 MIN READWhat happens when you upload a file to an online converter, the real risks for private documents, and how to check whether a tool processes files locally.
No converter matches that search. Try a file type like “png” or a word like “compress”.
Why convert in the browser?
Most online converters upload your file to a server, process it there and send it back. That takes time, puts limits on file size, and means a stranger’s computer holds a copy of your document, photo or recording.
HushConverts works differently. Each converter is a small program that runs inside your browser using built-in features such as the Canvas API for images, the Web Audio API for sound and the Web Crypto API for hashes. Your data never leaves your device, results appear instantly, and the tools keep working even if your connection drops.
Every tool is free, needs no account, and has a short guide and answers to common questions on its page.