One card, one task
ToolDeck is a free collection of small browser tools. Each card handles a single job: paste in what you have, copy the result, and move on. No account, no installation.
The deck covers the tasks that interrupt bigger ones — a character count before a post goes out, a JSON file that will not parse, an image that needs splitting. Reach for the card you need; the answer is one screen away.
Runs in your browser
Your input is processed in your browser by default, so the text, colors, and files you bring stay on your device. A few tools need a server — fetching images from another page, for example — and send only what the task requires; nothing is kept afterward.
Frequently asked questions
Do I need an account?
No. There is no sign-up or login, and no email address is required.
Does it cost anything?
No. Every tool is free, with no usage limits.
Does it work on mobile?
Yes. The tools work in mobile and tablet browsers, and a dark mode is included. There is no app to install.
Is ToolDeck only for developers?
No. The code and data tools are made for developers, but the text, color, and image cards are just as useful for writers, designers, and anyone with a task in front of them.
How do I learn to use a tool?
Each tool includes a usage guide, with instructions in English and Japanese. More languages are on the way.
Pick a card. Solve one small thing.
