About ToolJiffy
ToolJiffy is a collection of free, browser-based utility tools for images, PDFs, and calculations. Every tool runs entirely on your device — no accounts, no uploads, no subscriptions.
Why we built this
Most people encounter the same digital friction repeatedly: an image is too large to upload, a photo is in HEIC format that Windows can't open, two PDFs need to be combined before submission to a government portal, or a quick mortgage estimate is needed. The tools that solve these problems should be quick to reach, free to use, and trustworthy.
ToolJiffy was built on a simple principle: the tool should work, and your data should stay on your device. We use well-maintained, MIT-licensed open-source libraries (pdf-lib, browser-image-compression, heic2any) and the browser's built-in APIs to do the processing. There is no backend server that touches your files.
Tools available
- File Converter
- Image Compressor
- HEIC to JPG Converter
- Image Resizer
- Resize Image to 20KB
- PDF Merge
- JPG to PDF Converter
- Mortgage Calculator
- Tip Calculator
- Percentage ↔ CGPA Converter
- Word Counter
Open-source attribution
ToolJiffy is built using MIT-licensed open-source software including:
- Astro — static site framework
- React — UI library for interactive islands
- pdf-lib — PDF creation and manipulation
- browser-image-compression — client-side image compression
- heic2any — HEIC/HEIF conversion
We are grateful to the maintainers and contributors of these libraries.
Contact
Reach us at our contact page or directly at [email protected].