Analyze JSON payload size, structure, nesting depth, and key count for optimizing API request and response bodies. Everything runs locally in your browser — nothing is uploaded.
Analyze JSON payload size, character count, key count, and nesting depth. Understand the size profile of your data.
Format, validate, and convert JSON to Zod schemas, URL query parameters, flat key-value pairs, JSON-LD, or analyze size and structure.
Prettifies JSON and API response data with configurable indentation, sorting, and syntax validation — fixes malformed JSON and makes nested structures readable.
Analyzes your writing with real-time word count, sentence count, syllable count, paragraphs, and advanced readability metrics — Flesch-Kincaid Reading Ease, Grade Level, estimated speaking time, and keyword density. Essential for writers, students, and SEO professionals optimizing content for readability.
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 Payload Analyzer lets you analyze JSON payload size, structure, nesting depth, and key count for optimizing API request and response bodies. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Analyze JSON payload size, structure, nesting depth, and key count for optimizing API request and response bodies. Everything runs locally in your browser — nothing is uploaded. 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 Payload Analyzer runs entirely on your device with no internet connection needed. All processing is done locally.
Analyze JSON payload size, structure, nesting depth, and key count for optimizing API request and response bodies. 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.