tools.sreecharan.in is a privacy-first catalog of free, single-purpose browser tools. PDF, design, developer, productivity. None of the tools here upload your file. None require an account.
Who runs this
This site is built and maintained by Sreecharan, a software engineer based in the US. There is no team, no investors, no agenda. Tools get added when they solve a real problem I or my friends ran into.
Why does this site exist
Every tool category has a dominant SaaS option (Smallpdf, ilovepdf, regex101, etc.). Most of them are good. They also tend to (1) require accounts past a small free tier, (2) upload your file to their server, (3) plaster the page with cross-site trackers, (4) wrap simple operations in subscription paywalls.
For tools you use a few times a year, that flow is friction. So this site offers the same operations as a single page each, runs the work in your browser via WebAssembly libraries (pdf.js, pdf-lib, fontkit, jszip, etc.), and ships the result as a download. No upload, no signup, no subscription.
How the privacy claim actually works
When you drop a file onto a tool here, the file is read into your browser memory using the standard FileReader / arrayBuffer() APIs. From there it is processed entirely by JavaScript and WebAssembly running on your CPU. The downloaded result is a Blob in your browser memory that your browser saves like any other download. There is no fetch() with your file as the body anywhere in this site's code. You can verify this in your browser's Network panel: drop a file, do the conversion, hit download. You will see no upload request.
The site does load shared libraries (pdf.js, pdf-lib, etc.) from a CDN, and some Google Fonts. Those are static assets. Once your browser caches them you can use most tools fully offline.
What is new
This site is iterated openly. The mega menu and the A-Z index always reflect the live tool list. Recent additions tend to land in the homepage featured rail.
Ads
The site shows Google AdSense in three places: between the featured tools and the A-Z list, after the A-Z list, and at the top of each tool article. Ads exist to pay for the domain and time. They are clearly framed as Sponsored. They never run inside the tool workspace itself.
No personal data
The site does not have a login or accounts. No personal data is collected by us. The browser may send aggregated impression data to Google AdSense for ad personalization. See the Privacy page for details.
Contact
Bug reports, tool ideas, partnership inquiries: hi@sreecharan.in. I read every email, response time is usually within a couple of days.
Thanks
Built on top of excellent open-source work: pdf.js by Mozilla, pdf-lib by Andrew Dillon, fontkit by Devon Govett, jszip, marked, turndown, js-yaml, PptxGenJS, fuse.js, Lucide icons. None of this would exist without them.