About ToolStack

ToolStack is a growing collection of free, single-purpose online tools designed to solve small everyday problems quickly. We build the tools we ourselves wanted: clean, fast, and free of clutter.

Our principles

• Free forever. No accounts, no paywalls, no usage limits.
• Private by default. Every tool runs in your browser — your data never leaves your device.
• Fast. Pages load in under a second and tools respond instantly.
• Focused. Each page does one thing well, with clear instructions.

How we're funded

ToolStack is supported by unobtrusive display advertising. This lets us keep every tool free without selling user data or hiding features behind paywalls.

Suggest a tool

If there's a tool you wish existed, let us know. We're always adding new ones.