About FlexibleToolsAI
FlexibleToolsAI is a growing collection of 29 free tools for images, PDFs and everyday development tasks — all of which run entirely in your browser. Most online converters upload your files to a remote server; we don't. Your files are processed on your own device and never leave it.
Files never leave your device
Conversions and compression run in your browser. Your images and documents are not uploaded to any server — there's nothing to intercept, store, or leak.
Powered by the browser itself
We use native browser APIs and WebAssembly (libheif for HEIC, pdf.js and pdf-lib for PDFs, Canvas for images) so tools are fast and work offline once loaded.
Free, with no account
Every tool is free, requires no sign-up, and adds no watermark. There are no per-file limits beyond your device's own memory.
Why we built this
Converting a HEIC photo, merging a couple of PDFs, or compressing an image shouldn't require handing your files to a company you've never heard of. Modern browsers are powerful enough to do all of this locally — so we built tools that do exactly that, with a clean interface and no dark patterns.
Because the heavy lifting happens on your device, the site stays fast and cheap to run, and your privacy is guaranteed by architecture rather than by a promise in a policy.
Explore the tools
Browse image tools, PDF tools, and developer tools, or read our privacy policy to see exactly how your data is handled.