Free browser-based file tools: merge and edit PDFs, compress and convert images, and generate exact-size test files. No upload for most tools, no signup.

I built ByteRivet after repeatedly seeing developers, QA teams and website owners struggle to find reliable test files in exact sizes. Most existing tools either provide only a few fixed downloads, require uploads to a server, or focus on a single format. I wanted to create one place where users could generate precise test files, process PDFs and convert images directly in the browser without signing up. The first version focused on exact-size test file generation for upload limits, API validation and QA workflows. From there, ByteRivet expanded into PDF, image and document tools while keeping the experience fast, simple and privacy-focused. I’m especially interested in hearing which formats, file sizes or tools would be most useful next. Feedback is very welcome.

the no upload thing is honestly a huge plus, really appreciate that. one thing though, would be great if the pdf merge let you drag and drop to reorder pages instead of just typing numbers. kind of tedious when i'm working with like 10+ files.

ByteRivet currently supports exact-size test files across formats such as PDF, JPG, PNG, WebP, ZIP, CSV, JSON, XML and DOCX.

I d love to learn how developers, QA teams and website owners handle file upload testing.

Which file sizes and formats do you use most often?

ByteRivet currently supports exact-size test files across formats such as PDF, JPG, PNG, WebP, ZIP, CSV, JSON, XML and DOCX.

I d love to learn how developers, QA teams and website owners handle file upload testing.

Which file sizes and formats do you use most often?

ByteRivet

Free browser-based file tools

Free browser-based file tools

Forum Threads

Which test file sizes and formats do you use most often?

Forum Threads

Which test file sizes and formats do you use most often?