JSON, regex, hashes — every utility, never logged.
Every developer has bookmarked a JSON formatter, a regex tester, a JWT decoder, or a base64 converter at some point. And every one of those tools logs the input — sometimes deliberately for analytics, sometimes inadvertently in their server access logs. When you paste a production JWT into jwt.io to debug an issue, that token sits in someone else's log files. When you paste an internal API response into a JSON formatter, that payload becomes a third-party data point. CipherForces developer tools are the same operations — JSON pretty-print, regex match, JWT decode, hash compute, UUID generate, color pick, base64, URL encode, hash generate — but they run entirely in your browser. The token never leaves the tab. We cannot log what we do not receive. For anyone working on production systems, internal APIs, or anything with PII running through it, that is the only acceptable posture.
19 dev tools.
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Open toolCSS Gradient Builder
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Open toolCSV ↔ JSON Converter
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Open toolEncode / Decode Base64
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Open toolFavicon Generator
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Open toolFormat JSON
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Open toolGenerate UUID
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Open toolTest Regex
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Open toolText Case Converter
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Open toolText Diff
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Open toolURL Encoder / Decoder
Free unlimitedEncode and decode URLs and edit query strings live. Two-mode tool — encode/decode any string, or paste a full URL and edit its parameters in a table.
Open toolWord Counter
Free unlimitedCount words, characters, sentences, and estimate reading time.
Open toolBuilt for privacy, breadth, and speed.
Live as you type
Every transformation runs on each keystroke. No "click to format" round-trip. Output appears in real time so debugging stays in flow.
No telemetry, no analytics on inputs
Click metrics: yes. The text you paste into a JSON formatter or JWT decoder: never logged, never sent anywhere, period.
Works in DevTools, not against it
These tools are designed to live next to your debugger, not replace it. Open DevTools → Network tab while using any of them — you will see zero outgoing requests for your data.
Coverage Stack Overflow recommends
JSON formatter / validator, regex tester, JWT decoder, base64 encode/decode, hash generator (MD5/SHA family), UUID v4, color picker, URL encode/decode + query string builder, lorem ipsum, text diff, text case converter, color contrast checker.
People ask these things.
Where do I paste a JWT to decode it without logging?
Use our JWT Decoder. The token is parsed entirely in your browser — header, payload, and signature are split, base64-decoded, and pretty-printed locally. We never see the token. For comparison, jwt.io's exact privacy posture is documented in their FAQ; ours is observable in DevTools.
Is there a regex tester that does not log my pattern?
Yes — our Regex Tester runs entirely in the browser using JavaScript's native RegExp. Match, replace, capture groups, named groups, and flags all work without any server round-trip.
How do I check the hash of a file without uploading it?
The Hash Generator computes MD5, SHA-1, SHA-256, SHA-384, SHA-512 entirely in your browser using the Web Crypto API. Drop a file, get all five hashes simultaneously. Useful for verifying downloads against a published checksum.
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