JSON Sanitizer & Transformer
Auto-fix broken JSON, mask secrets, convert to YAML or CSV.
Convert JSON to YAML or CSV, auto-fix broken JSON (trailing commas, single quotes, comments) and mask secrets. Free, runs in your browser, nothing uploaded.
About JSON Sanitizer & Transformer
JSON Sanitizer repairs and reformats broken JSON — it fixes trailing commas, single quotes, comments and other common mistakes, pretty-prints the result, and can convert it to YAML or CSV. It also masks secrets like API keys before you share a payload.
How to use JSON Sanitizer & Transformer
- Paste your JSON (even malformed JSON) into the input.
- The tool auto-fixes structural errors and shows clean, indented output.
- Optionally mask secrets, or convert the result to YAML or CSV.
- Copy the cleaned output — your data never leaves the browser.
Frequently asked questions
- Can it fix invalid JSON?
- Yes — it tolerantly parses common mistakes (trailing commas, single quotes, comments, unquoted keys) and rebuilds valid JSON.
- Is my JSON uploaded anywhere?
- No. Parsing and formatting happen entirely in your browser, so even sensitive payloads stay on your device.
- What is the difference between this and a formatter?
- A formatter only re-indents valid JSON; this also repairs broken JSON, masks secrets, and converts to YAML/CSV.
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