Contact and Report a Problem
Questions, bug reports, corrections to a guide, or anything else: info@kit-bin.com
Report a tool problem
A bug is much faster to fix when it can be reproduced. Copying this template into your email covers almost everything needed:
Tool:
Browser and version:
Operating system:
Approximate input file size:
Input format:
What you expected:
What happened:
Error message (if any):
Can it be reproduced with a non-sensitive sample file?Please do not email sensitive documents
Kit-Bin never receives your files during normal use, and a bug report should not be the exception. Where possible, reproduce the problem with a file that contains nothing confidential and send that instead. A description of the failure is more useful than the original document.
Browser support
Kit-Bin targets current versions of Chrome, Edge, Firefox, and Safari, on desktop and mobile. Everything relies on standard browser APIs and WebAssembly rather than anything browser-specific.
A per-browser, per-tool tested matrix is not published yet, because it would only be worth trusting once it is generated by an automated test suite rather than assembled by hand. If a tool fails in a specific browser, that is worth reporting, and it is the fastest way for that gap to get filled.
Known limitations
Device memory sets the real size limit
Files are processed in your browser, so very large files can be slow or run out of memory. Phones and tablets hit this sooner than desktops, and video is the most demanding category.
Encrypted or password-protected PDFs
PDFs that are locked with a password cannot be read by the PDF tools. Remove the password in the application that created the file first.
Metadata is not guaranteed to survive a conversion
Camera, location, and timestamp metadata may not carry across a format conversion. If that data matters, check the output before deleting your original. Individual tool pages say more where it's relevant.
Lossy operations cannot be undone
Compression and format conversion discard some data by design. Keep your original file until you have confirmed the output is good enough.
Unusual codecs may not be supported
Audio and video work depends on what your browser can decode. An uncommon codec inside an otherwise familiar container (.mp4, .mov) can still fail.
Some tools are deliberately limited
Where a tool does less than you might expect, its own page says so directly rather than failing quietly. Split PDF always splits every page, Rotate PDF rotates all pages by the same amount, Resize Image takes a width only, and Compress PDF only re-encodes embedded JPEG images.
For the architecture behind all of this, and how to verify that no file is being uploaded, read How Kit-Bin Works.