Axelary
Free Online Developer Tools
|
JSON Formatter · Regex Tester · UUID Generator · Base64 Encoder · Timestamp Converter · JWT Decoder · and more
A collection of fast, privacy-friendly tools for developers. Format JSON, test regex, decode tokens, convert timestamps, and solve everyday development tasks instantly — right in your browser. No login. No tracking. Just useful tools.
Axelary is a free set of browser-based utilities aimed at developers. Whether you're debugging API responses with the JSON Formatter, inspecting tokens with the JWT Decoder, encoding data with Base64 tools, or testing patterns with the Regex Tester — the utilities you reach for most are grouped in one place. Everything runs in the browser; no account needed.
Popular Tools
Commonly reached tools during API debugging, data encoding, and format inspection.
Common Developer Tasks
Tools grouped by the workflows they actually support.
API & JSON Debugging
Format compressed API responses, validate JSON syntax, decode Base64-encoded payloads, and inspect URL-encoded query strings in one place.
Auth & Token Inspection
Decode JWT claims to check expiry and issuer, convert exp and iat timestamps to readable dates, and decode Base64-encoded credentials.
Text Cleanup & Editing
Compare config files and copy revisions, convert identifiers between naming conventions, and check word and character counts against publishing limits.
IDs, Hashes & Scheduling
Generate UUID v4 identifiers for records and test data, compute deterministic hashes for cache keys and checksums, and verify cron schedules before deploying.
All Developer Tools
13 browser-based utilities for everyday development tasks — all free, no login required.
JSON & Data
JSON Formatter
Beautify minified JSON and inspect nested API payloads with consistent 2-space indentation.
JSON Validator
Validate JSON syntax and get the exact parse error with position so you can fix it fast.
JWT Decoder
Decode JWT header and payload to inspect claims like exp, iat, and sub. Does not verify signatures.
Encoding & Security
Base64 Encode / Decode
Encode text to Base64 or decode Base64 strings — handles HTTP auth headers, JWT segments, and API payloads.
URL Encode / Decode
Percent-encode query parameter values or decode encoded strings to debug broken URLs and redirect chains.
Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text for checksums and cache keys.
Text Utilities
Regex Tester
Test JavaScript regular expressions against sample text with live match highlighting.
Word Counter
Count words, characters, sentences, and lines — for copy limits, article targets, and metadata budgets.
Case Converter
Convert text between camelCase, snake_case, PascalCase, kebab-case, and more.
Text Diff
Highlight word- or line-level differences between two text blocks — for config changes, copy edits, and API response comparisons.
Date & Time
Developer Helpers
What is Axelary
Axelary is a free collection of browser-based developer utilities — JSON formatter, regex tester, UUID generator, Base64 encoder, Unix timestamp converter, JWT decoder, hash generator, and more. Everything runs locally in the browser: no accounts, no uploads, no tracking.
Built for development workflows
The tools cover tasks that come up constantly during development: inspecting API responses, validating data formats, encoding values for transport, generating identifiers, and comparing text. Having them in one place reduces context switching between browser tabs and external services.
Private by design
Every tool processes input locally using browser APIs — no data is sent to a server. This matters when working with tokens, API keys, internal JSON payloads, or any input you would prefer not to paste into an external service.
Why Axelary
- Browser-based — all processing happens locally; nothing is uploaded or stored.
- No signup required — open any tool and start immediately.
- Focused toolset — 13 utilities covering the tasks that come up most, without filler.
- Clean interface — fast to load, minimal distractions, consistent dark theme.
Frequently Asked Questions
- Are Axelary tools free?
- Yes. All tools on Axelary are free to use with no cost, no paywall, and no usage limits.
- Do the tools run in the browser?
- Yes. Every tool runs entirely in your browser using client-side JavaScript. No data is sent to a server.
- Do I need to create an account?
- No. There is no account or login requirement. Open a tool and start using it immediately.
- Is my input data uploaded anywhere?
- No. Input is processed locally in the browser and is not transmitted to any server. This applies to all tools including JWT Decoder, Hash Generator, and Base64 Encoder.
- What kinds of tools are included?
- Axelary includes tools for JSON formatting and validation, Base64 and URL encoding/decoding, JWT decoding, regex testing, hash generation, UUID generation, Unix timestamp conversion, cron expression parsing, text diffing, case conversion, and word counting.