AI JSON Assistant
Fix, explain, convert & generate JSON — plus schema, mock data, queries, regex, SQL and cron — powered by AI.
Paste broken JSON — get valid JSON back with the mistakes corrected.
The AI JSON Assistant handles a whole set of AI-powered tasks in one place — including Transform, where you simply talk to your JSON: paste it, describe a change in plain English (“rename keys to snake_case, drop null fields”) and get the edited JSON back. It also fixes, explains and converts JSON, generates JSON and mock data, produces a documented JSON Schema, turns natural language into jq / JSONPath queries, and writes regex, SQL and cron expressions from a plain-English description.
- ✓Transform — edit JSON with a plain-English instruction
- ✓Fix, explain and convert JSON to TypeScript, Python, YAML, SQL…
- ✓Generate JSON, mock data and a documented JSON Schema
- ✓Build jq / JSONPath queries, plus regex, SQL and cron from plain English
What the AI Assistant Can Do
The assistant combines eleven AI-powered tasks in one place, switchable from the tab bar above the input. Transformlets you talk to your JSON — paste it, describe a change in plain English (“rename keys to snake_case, remove null fields, lowercase the tags”) and get the edited JSON back. Fix JSON repairs malformed input; Explain JSON describes a structure in plain English; Convert JSON turns it into TypeScript, Python, Go, Rust, Java, YAML, XML, SQL or JSON Schema via a target dropdown; Generate JSON and Mock Data build example documents and realistic test arrays (choose the record count); JSON → Schema produces a documented JSON Schema; Query Builder writes jq and JSONPath expressions from a request; Text → Regex turns a plain-English requirement into a regular expression with an explanation; Text → SQL writes a query for PostgreSQL, MySQL, SQLite or SQL Server from a description of what you need; and Text → Cronconverts a schedule like “every weekday at 9:30am” into a standard 5-field cron expression with a plain-English explanation of when it runs.
Real-World Ways Developers Use It
- ▸Debug a broken API response — Paste malformed JSON from a log or webhook, hit Fix, and get valid JSON back — then Explain it to understand an unfamiliar payload.
- ▸Reshape data on the fly — Use Transform to rename keys to snake_case, drop null fields, or restructure JSON with a plain-English instruction — like talking to your data.
- ▸Scaffold types and models — Convert a sample response into TypeScript, Python (Pydantic), Go, Rust, Java, or a JSON Schema to kick-start a new integration.
- ▸Seed tests and demos — Generate realistic mock data arrays for fixtures, prototypes and UI screenshots in seconds.
- ▸Write queries and patterns — Turn a request into a jq/JSONPath expression, a regex, or a SQL query — in your chosen dialect — without leaving the tool.
- ▸Schedule a job without memorizing cron syntax — Describe when something should run in plain English and get a standard 5-field cron expression, explained in words so you can confirm it's right.
- ▸Learn from real JSON — Get a plain-English explanation of a complex structure to onboard onto a new API or codebase faster.
Privacy
Most JSONKit tools run entirely in your browser and never transmit your data. This one is different: to generate a response it forwards your input to a third-party AI service. JSONKit does not store your requests or responses. Avoid pasting secrets, credentials or sensitive production data — use the client-side JSON Fixer for fully-local repairs.