Every format.
One free toolbox.
PDF, Word, Excel, PowerPoint and images: convert, merge, compress, sign and edit without uploading anything. Your files never leave your device.
- Your files stay on your computer or phone
- 44+ ready-made tools for 20+ file types
- Desktop, tablet and mobile
Get a file job done online in three steps
Add your file
Pick a tool, then drag in the PDF, spreadsheet, slide deck or photo that needs work.
Set it up
Choose what should come out, page order, quality or size, depending on the task.
Save the result
Grab the new file. The whole job happened inside your browser, with nothing sent away.
Every free file and PDF tool in one place
Pick the job you need done. Each tool costs nothing, opens in the browser tab and keeps your file on your device. Or open a shelf: PDF converter, PDF tools, image converter, video and audio tools.
Nothing in the toolbox matches that search. Try a format name such as PDF or PNG.
What sets this toolbox apart
The jobs you would normally pay a PDF service for, done for free and without handing your documents to anyone.
A file toolbox that keeps every document at home
Nothing leaves your desk
The browser does the heavy lifting on your own machine, so no copy of your file is sent, kept or passed on.
Quick turnaround
There is no transfer and no line of other users ahead of you. Typical office files are done before you can refill your coffee.
On any screen
Use it on a work laptop, a home PC, a tablet or a phone in a current browser. Nothing to install, nobody to register with.
No learning curve
One tool per task, with a few clear settings, so students, office staff and freelancers can start without a tutorial.
Paperwork stays private
Plenty of web converters copy what you give them to their own servers. Best-Converter runs its engines as WebAssembly in your browser, so tenancy agreements, passport scans and salary slips are handled on your machine and nowhere else.
- Nothing sent, kept or passed on
- Keeps working if the connection drops after loading
- We set no cap on file size
Office, school and freelance paperwork, sorted in minutes
- Get PDFs back into Word, Excel or PowerPoint for editing
- Join, separate, rotate, trim and shrink PDF files
- Put a drawn or typed signature on contracts and forms
- Pull editable text out of scans and phone photos
- Make pictures lighter or switch them to web formats
Before you start: quick answers
What does a browser-based file converter actually do?
It rewrites a file in a different format, say a spreadsheet into a PDF or a WEBP picture into a JPG. On Best-Converter the rewriting is done by your browser, so you need no desktop program and the file is not transferred anywhere.
Which jobs can the Best-Converter toolbox handle?
Moving PDFs into and out of Word, Excel, PowerPoint, RTF, EPUB, plain text and pictures; switching images between JPG, PNG and WEBP; and changing video and audio files. On top of that you can join, divide, shrink, sign and edit PDFs.
Do I have to pay for any of the tools?
You do not. Every tool in the box is free to use, there is no trial period, no registration step and no stamp on what you save.
Where does the conversion happen?
Right on the laptop, desktop or phone you are using. The page brings the conversion code to your browser and opens your file locally, so it never travels to a server.