Every utility, one click away.
What is my IP
Public IP + geolocation
IP Lookup
Geo + ASN for any IP
User Agent
Browser, OS, device class
Subnet Calculator
CIDR: network, mask, hosts
DNS Lookup
A/AAAA/MX/NS/TXT/CAA records
SSL Inspector
Cert expiry, SANs, chain
HTTP Headers
Redirect chain + headers
robots.txt Tester
Validate + test crawl rules
Open Graph
Social preview + meta tags
WHOIS Lookup
Domain + IP registration data
Ping
Round-trip latency
MD5 Generator
128-bit fingerprint
SHA-1 Generator
160-bit hash
SHA-256
Modern, collision-resistant
Bcrypt
Hash & verify passwords
Timestamp
Unix epoch ⇄ datetime
Base64
Encode/decode binary-safe text
JSON Pretty
Format and validate JSON
URL Encode
Percent-encoding
JWT Decoder
Decode + verify, client-side
Color Converter
HEX/RGB/HSL/OKLCH + contrast
Image Converter
PNG/JPEG/WebP + quality
Unit Converter
Length, mass, temp, data & more
Currency Converter
160+ currencies, daily rates
IBAN Validator
Checksum + country/bank breakdown
Routing Number
US ABA checksum + Fed district
Number Base
Bin / oct / dec / hex + any base
Text Diff
Compare two texts, line or word
Markdown Preview
Live GFM render + highlight
HTML Entities
Encode/decode entities + emoji
Regex Tester
Test patterns — match, groups, replace
Case Converter
camelCase, snake, kebab, CONSTANT & more
Slug Generator
URL-safe slugs, accents transliterated
Password Generator
Strong random passwords, client-side
Passphrase Generator
Memorable diceware passphrases
API Key / Token
Random hex / base64 / alphanumeric
ID Generator
UUID, ULID, nanoid — in bulk
QR Code
Encode URLs and text
Lorem & Fake Data
Placeholder text + fake rows
Cron Visualizer
Explain cron + next runs
Speed Test
Up / down / latency
Country Codes
ISO, calling code, TLD
Contact
Bug reports, feedback
Built for builders,
not blog spam.
No signup walls. No 1500-word SEO intros before each tool. Just utilities that load fast and respect your time.
Instant
Every tool runs in milliseconds. Most run client-side so your data never leaves the page.
Private by default
No accounts, no cookies beyond what ads and analytics need. Tool inputs aren't stored or logged.
No bloat
Tailwind-only frontend — a single compact CSS bundle, not a multi-megabyte framework payload.
Built by humans
Maintained by a small team at HalleySoftware. Bug reports and weird tool ideas equally welcome via contact.
Ready to slice through web work?
Open any tool. Use it. Close the tab. That's the whole flow.