About OfflineBench

What OfflineBench is

Most online tools upload your file to a server, process it there and send it back. That is a poor fit for the files people most often need to fix: contracts, scanned IDs, bank statements, photos that record where they were taken, or API tokens and customer data. OfflineBench does the same jobs without the upload.

PDF tools

Merge PDF, Split PDF, Organize PDF, JPG to PDF, PDF to JPG, Fill & Sign PDF

Image tools

Remove EXIF Data, Compress Image, Resize Image, Convert Image

Developer tools

JSON Formatter, Unix Timestamp Converter, Base64 Encode & Decode, URL Encode & Decode, UUID Generator, Hash Generator, JWT Decoder, Diff Checker, Regex Tester

How it works

OfflineBench is a static website: there is no server that receives files and no account system. When you open a tool, your browser downloads its code, including the PDF engines (pdf-lib and pdf.js) and image codecs compiled to WebAssembly, and runs it on your device. Heavy work runs in the background so the page stays responsive.

The site’s security policy blocks the page from sending data to any other server, and you can check this yourself in your browser’s developer tools. After your first visit the pages also work offline. The details are in the privacy policy, and the open-source software OfflineBench is built with is on the licenses page.

Who runs it

OfflineBench is built and run by Ali Raza, an independent developer. It is free to use, with no ads, accounts or paid plans.

Contact

For questions, bug reports or ideas, email officialaliraza2005@gmail.com. When reporting a bug, mention the tool, your browser and device, and what you expected. Don’t attach a private file; describe it instead, or send a copy without personal information.