Prettifies JSON and API response data with configurable indentation, sorting, and syntax validation — fixes malformed JSON and makes nested structures readable.
Pretty-prints raw JSON with configurable indent width, key sorting, and bracket collapsing options while flagging syntax errors with exact.
Format and prettify GraphQL queries with proper indentation. Makes complex nested queries readable and maintainable.
Generate a JSON Schema (draft-07) from sample JSON data. Auto-detect types, required fields, and nested structures.
Convert messy CSV or Excel sheets from clients into clean JSON in one batch. Handles missing values, nested rows, and generates strict JSON schemas for 50+ files at once. Everything runs locally in your browser — nothing is uploaded.
Bidirectional YAML to JSON and JSON to YAML conversion with auto-format detection and real-time preview. Perfect for configuration files, API payloads, and data migration.
API Response Formatter lets you prettifies JSON and API response data with configurable indentation, sorting, and syntax validation — fixes malformed JSON and makes nested structures readable.. It works on any device with a modern web browser.
Prettifies JSON and API response data with configurable indentation, sorting, and syntax validation — fixes malformed JSON and makes nested structures readable. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, API Response Formatter runs entirely on your device with no internet connection needed. All processing is done locally.
Prettifies JSON and API response data with configurable indentation, sorting, and syntax validation — fixes malformed JSON and makes nested structures readable. All processing runs locally — no code is sent to any server.
Tools cover JavaScript, CSS, HTML, SQL, Python, JSON, XML, CSV, and more. Check the tool description for specifics.
Yes. Since processing is local, performance depends on your device. Most operations handle large files without issue.
Yes. Formatters use well-known libraries (sql-formatter, Prettier-compatible patterns) and follow widely adopted rules.
Random Port Generator
Generate random TCP/UDP port numbers from well-known, registered, or dynamic ranges. Useful for network testing, Docker port mapping, and firewall configuration.
Chmod Calculator
Convert between numeric (755) and symbolic (u=rwx,g=rx,o=rx) chmod permission formats. See detailed breakdown for owner, group, and others.
Docker Run to Compose Converter
Convert docker run commands to docker-compose.yml format. Supports ports, volumes, environment variables, networks, restart policies, and container names.
Email Normalizer
Normalize email addresses by removing dots (Gmail), stripping +tags, and lowercasing. Process multiple emails at once for deduplication and cleaning.
Diff Checker
Compares two input texts side-by-side, highlighting inserted, deleted, and changed lines with distinct background colors. Everything runs locally in your browser — nothing is uploaded.
IP Address Lookup
Displays your public IPv4 and IPv6 addresses with geolocation data (city, ISP, ASN, timezone). Network engineers use it to verify VPN connectivity. Uses cloud-based processing.