Drop a file and find the right tool
Drop any file to see what type it is and open it, already loaded, in a tool that can work with it, or check it against the upload requirements a site gave you.
How to use File Tool Finder
- Choose or drop any file.
- Check the detected type.
- Pick a tool; it opens with your file already loaded. Or check the file against upload requirements and fix it.
Questions
- How is the file type detected?
- From the file's first 16 bytes (the signature that identifies PDF, PNG, JPEG, GIF and WebP), then from its MIME type and extension. Nothing else in the file is read.
- Do I have to choose the file again in the next tool?
- No. Tools that take files open with your file already loaded. Text tools like the Word Counter work on pasted text, so for text files you paste the content there.
- A site rejected my file. Can this help?
- Yes. Choose "Check it against upload requirements", enter the format, dimensions, shape and maximum size the site asked for, and every failed check is explained. Fix it makes a new file that meets them, checks it again and leaves your original unchanged. The same check opens directly as Fix My Upload.
- What if my file type isn't recognised?
- You can still calculate its hash with the Hash Generator or encode it as Base64.
- Is my file uploaded?
- No. Detection runs in your browser, and the file is passed to the next tool through your browser's storage on this device.