Independent & Open Source
Keep useful tools free for everyone
These tools are 100% free with no ads, no third-party trackers, no paywalls, and no corporate investors. Every single tool runs directly inside your browser tab using local WebAssembly and on-device compute. Your files and inputs never touch a server.
If our fast offline utilities saved you valuable time today, consider supporting future development so we can keep adding more daily tools.
Global Support via GitHub
Supports Apple Pay, Google Pay, Visa, MasterCard, Amex & PayPal worldwide.
GitHub Sponsors Review Pending
Our official GitHub Sponsors profile is currently under review by GitHub and will activate shortly. In the meantime, starring our repository is the best free way to support OpenTools!
☕ Quick Coffee
Helps cover automated zero-egress test suites and hosting.
- Runs our 270+ offline security tests
- Keeps the platform 100% ad-free
- Good karma & community gratitude
⚡ Tool Backer
PopularFunds new offline WebAssembly algorithms and local codecs.
- Accelerates Video & OCR offline engines
- Expands document & media suites
- Direct support for client-side compute
💖 Pro Patron
Supports dedicated open-source engineering and security audits.
- Prioritized feature suggestions
- Supports strict zero-egress audits
- Direct contact & feature advisory
Want to contribute a custom amount?
Custom recurring and one-time sponsorship tiers will be available as soon as GitHub completes review.