The privacy problem with online tools
We've all been there. You need to convert a PDF, format some JSON, or hash a password quickly. You search for a free tool, upload your file to the first result, and then… wait.
But as a software engineer, a thought nags at the back of your mind,
- Where did my files actually go?
- is this server storing my data?
- Did I just upload sensitive metadata to a random site? Most online tools process your data on their backend. yes. this means your files leave your device, travel across the internet, and land on a server you don't control..
The solution --> Codecoffeetools.com
I build Codecoffeetools to solve this specific problem. it is a collection of professional grade developer and office tools that run 100% locally in your browser.
Why "Privacy-First" Matters?
By leveraging modern JavaScript APIs, we can perform heavy tasks—like image compression, PDF manipulation, and encryption—right on the client side.
Zero Data Leaks - Your files literally never leave your device.
Zero Latency - No upload/download time. Results are instant.
Zero Cost - Free forever, no subscriptions.
What's Inside?
I’ve packed it with tools I use daily as a developer and student
🔒 Security:
Exif Data Remover - Clean metadata from photos before sharing.
Client-Side Password Generator - Create strong credentials without them touching a network request.
and more....👨💻 Developer Tools:
JSON Formatter & Validator - Beautify messy API responses.
SQL Formatter - Clean up complex queries.
Diff Checker - Compare code snippets locally.
and more....📄 PDF & Image:
Merge, Split, and Watermark PDFs instantly.
** Compress images** without quality loss.
and more....📷 Image Tools:
Image Compressor - Compress images locally to reduce file size while maintaining quality.
HEIC to JPG Converter - Convert iPhone photos (HEIC) to JPG locally.
Try It Out
I’d love for you to break it (or just use it!). Check it out here: 👉 codecoffeetools.com
Feedback is welcome! Let me know in the comments if there’s a specific tool you’d like to see added next.

Top comments (1)
Hi everyone! I'm a final-year student and I built this because I was tired of uploading my personal data to random converter sites. I'd love to hear if there are any other tools you think I should add. Thanks for checking it out!