Productivity
JSON Formatter
Validate and pretty-print JSON files with configurable indentation.
Works entirely in your browser — nothing to installFiles processed privately in an isolated workerAuto-deleted 60 minutes after uploadNo account required to start
Upload files
Drag & drop files here, or click to choose from your device.
Accepted: application/json, TXT
Maximum 25 MB per file, up to 1 file. Files are temporary and expire automatically after the configured retention window.
Accepts application/json, TXTUp to 25 MB
About this tool
Parse, validate, and reformat JSON files from the server. Invalid JSON is rejected with a clear error.
Common uses
Format API responsesValidate config filesClean up minified JSON
Good to know
Files never leave the secure pipelineAuto-deleted 60 minutes after uploadNo account required to start
Frequently asked questions
The job fails immediately with a clear parse error message rather than producing corrupt output.