Tools
Small, fast utilities that live alongside ReasonCore — most run entirely in your browser.
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Recently used
Text & data 3 tools
Developer & network 5 tools
JSON formatter
Validate, pretty-print, or minify JSON — with a pointer to the exact error.
DNS lookup
Read a domain’s A, AAAA, CNAME, MX, TXT, NS, SOA, and CAA records.
Server lookup
Your IP
Shows the public IP address your browser is connecting from.
Server lookup
UUID generator
Random v4 or time-ordered v7 UUIDs, single or in batches.
Cron explainer
Explain any cron expression in plain English and preview its next runs.
Image & creative 4 tools
Pixel editor
Draw on a small grid and export a real-resolution PNG, e.g. a favicon.
ASCII art generator
Type a banner in a block font, or turn a photo into text art.
EXIF viewer
Read a JPEG’s camera and GPS metadata, entirely in your browser.
Color picker
Pick a color and convert live between HEX, RGB, and HSL.
Generators & decisions 6 tools
Password generator
Cryptographically random passwords with an entropy estimate.
Lorem ipsum generator
Generate placeholder paragraphs, ready to copy.
QR code generator
Turn text or a URL into a downloadable QR code.
Randomizer
Paste a list of rows, shuffle them into a random order.
Dice roller
d4 to d100, with a modifier and roll history.
Wheel of fortune
Edit the segments to whatever you’re deciding between, then spin.
Time & calculations 5 tools
Stopwatch
Start, lap, stop — a simple clock-timed stopwatch.
Percentage calculator
Four common percentage questions, all live as you type.
Timestamp converter
Unix ↔ human date conversion, live, with a ticking now.
Pomodoro timer
Work/break focus timer with sessions, auto-switch, and a chime.
Event countdown
Live countdown to an event, shareable as a self-contained link.
No tool matches your search.