All tools

Pretty-print JSON with configurable indentation and instant validation.

Strip whitespace to shrink JSON to the smallest valid payload.

Validate JSON syntax and pinpoint the exact line and column of any error.

Turn minified or tangled JSON into clean, readable, well-indented text.

Recursively sort object keys alphabetically for stable, diffable JSON.

Flatten nested JSON into single-level dot-notation key paths.

Rebuild nested JSON from flat dot-notation keys.

Escape any string so it can be safely embedded inside JSON.

Turn a JSON-escaped string back into readable raw text.

Convert a JSON value into an escaped JSON string literal.

Recursively strip every null value from a JSON document.

Remove empty strings, arrays, objects, and nulls throughout JSON.

Compare two JSON documents and see a precise structural diff.

Deep-merge two or more JSON objects into one.

Explore JSON as a collapsible, interactive tree.

Analyze JSON size, depth, key counts, and type distribution.

Query JSON with JSONPath expressions and see live results.

Infer a JSON Schema from a sample JSON document.

Validate JSON against a JSON Schema using AJV.

Turn JSON into clean, readable YAML for configs, pipelines and manifests.

Parse any YAML config into strict, valid JSON your code can consume.

Flatten an array of JSON objects into spreadsheet-ready CSV.

Parse CSV into a clean array of typed JSON objects, header-aware.

Convert JSON into well-formed XML with attribute and element control.

Parse XML into predictable JSON with clear attribute and text mapping.

Generate cryptographically random v4 and time-ordered v7 UUIDs in bulk.

Create compact, URL-safe Nano IDs with a custom size and alphabet.

Encode text or files to Base64, with an optional URL-safe variant.

Decode Base64 back to readable text, including URL-safe input.

Decode a JWT to inspect its header, payload, and claims instantly.

Percent-encode text for safe use in URLs and query strings.

Decode percent-encoded URL strings back to plain, readable text.

Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes of text or files.

Generate strong, random passwords with a live strength estimate.

Convert between Unix timestamps and human-readable dates, both ways.

Generate placeholder lorem ipsum text by paragraphs, sentences, or words.

Write, preview and export PlantUML diagrams in your browser - rendered 100% locally.