About Tools-Bench
Every file tool you need, right in your browser.
Why this site exists
Tools-Bench started with a simple frustration: needing to merge two PDFs and finding that every "free" tool wanted the files uploaded to someone's server first. For a contract, a medical record, or a photo of your kids, that's a real cost hidden behind a convenient button. Modern browsers can do all of this work themselves — JavaScript and WebAssembly are fast enough to merge PDFs, compress images, and even run an AI background-removal model without any server involved. So we built the tool site we wanted to use: one where privacy isn't a policy promise but an architectural fact.
Privacy-first by design
Most online tools upload your files to a server. Tools-Bench doesn't. Every tool — merging PDFs, resizing images, formatting JSON, hashing text — runs entirely on your device using your browser. Your files never leave your computer, so there's nothing for us to see, store, or leak. You don't have to take our word for it: open your browser's developer tools while using any tool and watch the network panel — no file ever leaves.
Free and fast
No accounts, no sign-ups, no upload-and-wait. Open a tool, drop a file, get your result. Because there's no round-trip to a server, large files are often processed faster here than on upload-based sites — and the tools keep working even if your connection drops mid-task. The site is supported by unobtrusive ads so the tools can stay free for everyone, with no watermarks, daily limits, or "premium" tiers.
What's inside
Nineteen tools and counting across three areas: PDF (merge, split, compress, rotate, convert, watermark, sign), images (compress, resize, convert, crop, AI background removal), and developer utilities (JSON formatting, JSON-to-CSV, Base64, JWT decoding, diff, hashing). The Learn section adds plain-English guides to the concepts behind the tools — image formats, PDF compression, hashing, encoding.
Who runs it
Tools-Bench is built and maintained by an independent software engineer — one person who writes the code, answers the email, and uses these tools daily. Bug reports and tool requests genuinely shape what gets built next.
Contact
Questions, suggestions, or found a bug? Email [email protected] — messages are read and answered by a person, usually within a couple of days.