Independent & open source

Keep these tools free 🙌

Zero ads, zero accounts, zero tracking cookies. Every tool executes strictly inside your browser tab. Voluntary contributions fund our real domain and edge hosting costs so the project stays independent and fast for everyone.

Open now · worldwide

Buy me a coffee ☕

Cards, Apple Pay, Google Pay, and PayPal. A single $5 coffee funds a full month of domain and edge hosting operations to keep every tool fast and free for everyone.

☕ One Coffee

$5 / one-time

Covers the domain and the hosting.

No ads, no third-party trackers, no profile of you
Every tool stays free — no signup, no watermark
Nothing in return — support is voluntary

Send $5 ☕

⚡ Two Coffees

$10

$10 / one-time

Keeps the tools that are already here working.

Fixes and maintenance on the tools here today
Checks that catch a bad file before you download it
Nothing in return — support is voluntary

Send $10 ☕

💖 Five Coffees

$25

$25 / one-time

Buys time for new tools, and the tests behind them.

Time to build and test new tools
The code stays MIT-licensed and open to read
Nothing in return — support is voluntary

Send $25 ☕

☕ $5 = one coffee · no ads, no trackers · nothing in return

Want a different amount, or monthly? 💚

Choose an amount

What your support pays for — transparent infrastructure costs

OpenTools is entirely self-funded and operates with no venture backing or ad networks. Here is the exact breakdown of our operating costs:

Edge Hosting & Uptime$5 / month

Funds independent edge infrastructure and development time. All 1,031 pages are prerendered and served from the edge as static files, so tools load instantly worldwide without commercial sponsors.

Domain & DNS$12 / year

Annual renewal for getopentools.com. Keeps the site running on a clean, independent domain without third-party sponsorship banners.

Cloud File Ingestion & Storage$0 / forever

Zero dollars spent on file processing servers. Because tools run locally via JavaScript, Web Workers, and WebAssembly with a strict connect-src 'none' Content Security Policy, your files never reach a server.

Independent Tool EngineeringPure Code

Writing zero-dependency client-side engines: whole MPEG frame MP3 cutting, subtitle two-point synchronization, offline PDF page operations, and local schema formatters.

No paid tiers, no premium paywalls, no feature gating. Support is 100% voluntary; if you choose not to contribute, every tool remains equally and completely free.