Convert files right in your browser
Images, spreadsheets, data, fonts and archives. Pick your files, choose a format, done. Everything happens on your device, so your files stay yours.
or drop files here · processed on your device, never uploaded
- Files never leave your device
- No sign-up or watermark
- Batch convert, download as ZIP
What can ConvertCove convert?
Popular conversions
Three steps, zero uploads
- Add files. Click Select files, drag them in, or paste an image. Each file is recognised by its extension and gets a sensible default target.
- Choose formats and options. Change the target per file, or set all files at once. The slider icon opens options such as quality, size, delimiter or icon sizes.
- Convert and download. Only the converter you need is loaded, at the moment you add a matching file. Results appear with a download button, plus a ZIP of everything.
Unlike upload-based converters, there is no queue, no file-size paywall and no copy of your data on someone else’s server. Here is exactly how it works, including the open-source libraries behind each format.
Frequently asked questions
Is ConvertCove really free?
Yes. There are no accounts, daily limits, watermarks or paid tiers. Because conversions run on your own device, they cost us almost nothing to provide.
Are my files uploaded?
No. The page downloads the conversion code to your browser and your files are processed there. Nothing you convert is sent to a server, which you can confirm in your browser’s network panel or by going offline after the page loads.
Which formats are supported?
Images (HEIC, WebP, AVIF, PNG, JPG, GIF, BMP, TIFF, ICO, SVG), data and documents (CSV, JSON, XML, YAML, Excel, Markdown, HTML), fonts (TTF, OTF, WOFF, WOFF2) and archives (ZIP, TAR, TAR.GZ, GZ). See the formats page for every combination.
Can I convert several files at once?
Yes. Add as many files as you like, choose a target for each (or set them all at once), press Convert, and download them individually or as one ZIP.