Fast. Private. Useful.
Everyday tools that never see your data.
I needed these tools and didn't want to paste my data into someone else's server. So I built them to run entirely in your browser, and I'm sharing them so you don't have to either.
Open the tools- Runs in your browser. Every conversion, decode, and calculation happens on your device. Nothing you paste is sent anywhere.
- No accounts, no analytics, no ads. There is nothing to sign up for and nothing watching you use it.
- Open source. The code is public, so you can verify the promise instead of trusting it.
The tools
- RevealIP Your public IPv4 and IPv6 address, nothing else.
- UTC Live local and UTC clocks with your offset and DST status.
- Epoch Unix timestamps to dates and back, with a live current epoch.
- Cron Build or decode cron schedules with plain-English explanations and next runs.
- Password Cryptographically random passwords with length and symbol controls.
- JSON Toolkit Validate, format, and lint JSON.
- Column to List Turn a column of text into a comma-separated list, or back.
- Mermaid Preview Preview Markdown and Mermaid diagrams.
- Word/Token Counter Words, characters, and estimated LLM tokens as you type.
- Base64 Encode and decode Base64.
- URL Encode Percent-encode and decode strings.
- JWT Decoder Decode JWT header and payload without the token leaving your device.
Most online utilities are free because you are the product: your input goes to a server, and you get ads and tracking in return. I didn't want that trade for myself, so I made tools that keep everything on your device. They are free for everyone and will stay that way. If they save you a minute, that's the point.
— NeoNema LLC