Convertur
Runs entirely in your browser

Your files never leave your device.

Convert images, PDFs, audio, video, documents, and data right in your browser. No uploads, no account, and no server upload limits.

Drop any fileWe’ll suggest the right converter — nothing gets uploaded.Browse files

Popular converters

All tools →
HEIC to JPGConvert iPhone photos to universally supported JPG.WebP to PNGTurn modern web images into easy-to-edit PNGs.AVIF to JPGBring next-gen images back to the classic format.Image CompressorShrink JPG, PNG and WebP files with a quality slider.Image ResizerResize to exact pixel dimensions or handy presets.SVG to PNGRasterize vector graphics at 1x, 2x or 4x.Images to PDFCombine JPG and PNG images into one PDF.PDF to JPGRender every PDF page to a JPG image.Merge PDFCombine several PDFs into one, in any order.Split PDFBreak one PDF into single pages or custom ranges.Compress PDFReduce PDF file size for email and uploads.MP3 to WAVTurn compressed MP3s into uncompressed WAV audio.WAV to MP3Shrink big WAV files into portable, high-quality MP3s.M4A to MP3Convert Apple M4A/AAC audio to universal MP3.MP4 to MP3Extract MP3 audio from MP4 video.Compress AudioShrink audio files by choosing a lower bitrate.MOV to MP4Convert Apple QuickTime MOV videos to MP4 for playback and upload anywhere.WebM to MP4Convert WebM videos to MP4 (H.264) for editors and apps that reject WebM.Compress VideoShrink MP4 file size with a quality slider and resolution cap.Video to GIFTurn a clip into a looping GIF with fps and width controls.JSON to CSVTurn JSON data into a spreadsheet-ready CSV.CSV to JSONTurn spreadsheet rows into a clean JSON array.DOCX to HTMLTurn Word documents into clean, semantic HTML.Markdown to HTMLRender Markdown into standards-compliant HTML.SRT to VTTConvert SubRip subtitles to WebVTT for the web.JSON FormatterPretty-print and validate JSON with clear error positions.JavaScript MinifierCompress JS with Terser — mangle and squeeze in your browser.Base64 EncodeEncode text to Base64 with full UTF-8 support.SHA-256 GeneratorHash text or files with MD5, SHA-1, SHA-256, SHA-384, or SHA-512.UUID GeneratorGenerate random and time-ordered UUIDs in bulk.QR Code GeneratorCreate QR codes for links and text — PNG or SVG.Unzip ZIP filesOpen a .zip and download the files inside.Create ZIP filesBundle multiple files into one .zip download.GPX to KMLTurn GPS tracks into Google Earth KML.EML ViewerOpen .eml emails and save them as HTML.Unlock PDFRemove print, copy, and edit restrictions.CR2 to JPGTurn Canon CR2 RAW photos into shareable JPGs.Image to Text (OCR)Pull editable text out of screenshots, scans and photos.Remove BackgroundErase the background from any photo, right in your browser.Explore every toolBrowse PDF, video, audio, archive, document, data, and developer utilities.

How it works

There’s no server in the picture. Your file opens in the page, converts in the page, and downloads from the page.

STEP 1Drop a filePick any file from your device. It opens directly in the page — nothing is sent anywhere.
STEP 2It converts in your browserA WebAssembly engine does the work inside your browser tab, at native speed.
STEP 3Download the resultSave the converted file. Close the tab and nothing is left behind.
Your fileYour browser converts itYour download
Cloud serverNever in the path.

A different kind of converter

Convertur
  • Files stay on your device, always
  • Converts instantly — no upload wait
  • No server upload caps or daily limits
  • Free — no account needed
Upload-based converters
  • Files are sent to someone else’s server
  • You wait for upload, queue, and download
  • Size limits, daily caps, paywalls
  • Accounts, pop-ups, and inbox spam

Frequently asked questions

Are my files really never uploaded?

Correct. Conversion runs in your browser using WebAssembly. Your files never touch a server — you can even go offline once a tool has loaded.

Is Convertur free?

Yes. Every current tool is free to use, and no account is required.

Is there a file size limit?

There is no server upload limit because files are not uploaded. The practical limit depends on your browser, available device memory, file format, and conversion task.

Does it work offline?

Once a tool has loaded, it keeps working without a connection — proof that nothing depends on a server.

Which browsers are supported?

The site works in current versions of Chrome, Safari, Firefox, and Edge. Individual conversion capabilities can vary by browser, device memory, and operating system.