About FixiTool

FixiTool is a collection of free, single-purpose online tools for families, creators, and developers. Every tool runs entirely in your web browser — there is no sign-up, no download, and nothing you type is sent to a server.

What we build

We focus on practical utilities that answer a specific question or produce a specific result:

• Trump Accounts growth projector — project a child's 530A account to ages 18, 30, and 55.
• AI voiceover tag helper — build expressive voiceover scripts with clickable audio tags.
• Car loan interest deduction estimator — estimate 2026 federal tax savings on qualifying auto loans.
• DMCA counter-notice generator — assemble a §512(g)(3)-compliant letter for false copyright strikes.
• MCP server config generator — build validated mcpServers JSON for AI coding clients.
• Prompt caching savings calculator — compare AI API costs with and without prompt caching.

How the site is funded

FixiTool is free to use and supported by display advertising. We aim to keep ads unobtrusive and never let them interfere with the tools themselves.

Privacy by design

Because all calculations happen on your device, we have no access to the numbers, scripts, or letters you create. See our privacy policy for details.

Contact

Questions, corrections, or tool ideas? Reach us via the contact page.