Why "in your browser" matters
Most free online tools upload your files to a server. You are trusting a stranger with your photos, contracts, voice memos, and personal data. OpenConvert does not work that way. Every tool here uses modern browser technology - the Canvas API, the Web Audio API, and WebAssembly - to process your files locally. The work happens on your own computer, and nothing is transmitted, stored, or seen by anyone. It is faster too, because there is no upload or download round-trip to wait for.
What you can do with OpenConvert
OpenConvert bundles more than 20 everyday file tools in one place, all free and all private. On the image side you can compress JPG and PNG photos, convert HEIC to JPG or PNG to JPG, resize and crop a picture, remove a background, and strip EXIF and GPS data before you post a photo online. For documents, you can convert PDF to DOCX with built-in OCR, then merge, split, rotate or compress a PDF, or turn a stack of images into a single PDF. There are also tools to pull editable text out of an image with OCR, convert audio to MP3, shrink a video, and generate strong passwords.
Free, with no catch
No account, no email, no watermarks, and no per-day limits. The tools are supported by unobtrusive ads so they can stay free for everyone. You will never be asked to sign up, and you will never hit a paywall halfway through a conversion. If you want to dig deeper, the OpenConvert blog has step-by-step guides for the most common jobs.
Private by design, not by promise
Plenty of sites claim to respect your privacy. With OpenConvert you can prove it for yourself: open your browser's developer tools, switch to the Network tab, and run any tool. You will see that your file is never sent anywhere. Because everything runs on your device, most tools keep working even if your internet connection drops after the page has loaded. Your files stay yours, from the moment you drop them in to the moment you download the result.
FAQ
Do these tools upload my files?
- No - every tool processes files locally in your browser using the Canvas API, Web Audio API, or WebAssembly. Nothing is ever transmitted to a server.
Do they work on mobile and iPad?
- Yes - all tools run on any modern browser, including Safari on iPhone and iPad and Chrome on Android.
Is there a file size limit?
- No artificial limit. The only constraint is your device's available memory.
Are the tools really free?
- Yes, completely. No account, no watermarks, no per-day limits. The site is supported by unobtrusive advertising.
Do they work without an internet connection?
- Once the page is loaded, most tools run offline because all processing happens on your device.
How is this different from Smallpdf, iLovePDF or Adobe?
- Those services upload your files to their servers before processing. OpenConvert does everything in your browser - your files never leave your device.