17 tools · free · no sign-up
Everyday developer toolswithout the upload.
JSON, Base64, hashes, JWTs, diffs, slugs, UUIDs and more — formatted as you type, computed on your device, ready to copy.
The JSON you paste at 2 a.m. stays on your machine.
Every tool,
one keystroke away.
Seventeen focused utilities grouped by the job they do. Press ⌘K anywhere to jump straight to one.
Fast because
nothing leaves the tab.
17 tools for the jobs between commits — encode, hash, diff, format, generate.
0 bytes of what you paste are sent to a server. Results are computed by your browser.
3 languages — English, Русский and Deutsch, with the same tools in each.
Built for the people
who ship.
Developers, designers, DevOps and content teams use the same seventeen tools — each for a different job.
DevelopersFormat JSON, decode tokens and diff responses without leaving the browser.json · jwt · diff · base64
DesignersCheck colour contrast, find shades and fill layouts with realistic text.color · lorem · qr
DevOpsConvert configs, hash artefacts and generate IDs for every deploy.config · hash · uuid
Content & SEOClean slugs, length limits and Markdown for every post you publish.slugify · counter · markdownThree steps from
paste to done.
- Find the tool. Press ⌘K or / and type what you need — “decode”, “slug”, “sha”.
- Paste your input. Results update as you type, with options one tap away.
- Copy and go. One tap copies the result, already formatted.
Private by design
Every tool is plain JavaScript in this page. Tokens, configs and passwords are processed locally and never uploaded.
Nothing to sign up for and no usage caps. Open a tool, use it, close the tab.
Once a page has loaded, its tool keeps working without a connection — on a plane or behind a VPN.
Good to know
Yes. Every tool is free to use, with no account and no usage limits.
Paste it. Fix it.
Copy it.
The small tools you reach for ten times a day, in one fast, private place.