SafeJSON vs codebeautify.org

codebeautify.org was part of the same November 2025 credential leak that exposed 80K+ snippets. SafeJSON removes that failure mode by processing JSON locally in your browser.

FeatureSafeJSONcodebeautify.org
ProcessingClient-side. No data transmission during JSON work.Server-side workflow.
Verifiable privacyYes. Check DevTools -> Network.No clear zero-request verification path.
Data breach historyNone.Part of the November 2025 80K+ credential exposure.
Open sourceYes. MIT license.No.
AdsNone.Heavy ad placements.
JSON DiffYes (Pro).No focused JSON Diff workflow.
JWT DecoderYes (Pro).Not a privacy-verifiable JWT workflow.
JSONPathYes (Pro).No.
Schema ValidatorYes (Pro).Limited.
Large files50MB+ local handling.Limited by upload and browser/server workflow.
PriceFree core tools, $5/month Pro.Free with ads.

The codebeautify.org incident

The reported 2025 exposure affected jsonformatter.org and codebeautify.org. For developers pasting logs, API responses, tokens, configs, or customer data, the problem is not only one incident. The problem is any workflow where sensitive JSON leaves the browser.

How to verify any JSON tool

  1. Open the tool in your browser.
  2. Open DevTools and switch to the Network tab.
  3. Paste JSON and run the formatter, viewer, diff, decoder, or parser.
  4. If a new request contains your data, the tool uploaded it. SafeJSON shows zero new requests while processing JSON.

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