Public tool listing

JSON Repair details

Fix malformed LLM JSON output, trailing commas, quotes, and broken arrays. This listing explains the production contract, privacy posture, and handoff notes for the Toolars developer catalog.

Local firstFree trialJSONLLMAPI

Open workspace

Overview

JSON Repair is the default rescue workspace for broken LLM output, API payloads, and copied object literals. It should feel fast, local, and predictable before deeper validation steps.

How it works

1Paste malformed JSONAdd LLM output, tool-call payloads, logs, or copied API responses into the local editor.Local

2Repair syntaxNormalize quotes, trailing commas, comments, dangling keys, wrapped arrays, and common LLM formatting drift.Repair

3Review diffCompare repaired output against the source so teams can catch risky changes before using the payload.Review

4Validate handoffCopy clean JSON into schema validation, prompt hardening, or MCP payload tests.Handoff

Local repair model

LocalRepair and diff should run in-browser without sending payloads to a server.

No silent editsThe repaired output must keep a visible diff so structural changes are not accepted blindly.

AI workflowsOptional prompt hardening handoff should disclose any text that would leave the local workspace.

Implementation handoff

UIWorkspace anatomySource editor, repaired output, issue list, diff review, validation status, and copy/export controls.Stable

APIRepair contractReturn repaired JSON, parse status, issue list, confidence, diff summary, and optional schema validation state.Next