I just built Restring
— a fast, modern toolbox for everyday dev tasks like formatting JSON, decoding JWTs, and converting strings.
I know there are plenty of similar tools out there, but I wanted something that felt instant and smart.
- Fast: Built with SvelteKit and plain HTML/CSS, with minimal dependencies and no UI bloat. The whole site is under 300 KB zipped and feels lightning quick.
- Smart: It tries to detect what you paste (like JSON, JWT, or Base64) and routes you to the right tool automatically.
Currently supports:
Base64, JSON, JWT, URL, Color, and DateTime.
I’ve used React, Vue, and Flutter before, but building this with SvelteKit was a joy — intuitive, minimal, and just works.
Would love feedback, especially on the auto-detection logic and ideas for other tools to add.
