Data Converters Tools
Convert between JSON, CSV, YAML and XML with correct escaping, type handling and error reporting — plus a strict JSON validator.
Convert between JSON, CSV, YAML and XML with correct escaping, type handling and error reporting — plus a strict JSON validator.
JSON Formatter & Validator
Pretty-print, minify, and get a real line-and-column error when the JSON is malformed.
JSON Minifier
Removes formatting whitespace only — never a character inside a string.
JSON to CSV Converter
Flattens nested objects into columns, takes the union of every key, and escapes properly.
CSV to JSON Converter
A parser that honours RFC 4180 quoting, so quoted commas and embedded newlines survive.
JSON to YAML Converter
YAML output that quotes the values which would otherwise change type on the way back.
YAML to JSON Converter
For Kubernetes manifests, CI configs and Ansible playbooks you need in JSON form.
JSON to XML Converter
Attribute and text conventions respected, and every value escaped correctly.
XML to JSON Converter
A parser that refuses malformed XML instead of guessing, and says which tag broke it.
Why these run locally
Every tool on this page processes its input in the browser tab. For this category that matters because the inputs are frequently sensitive: digests of passwords and keys, authentication tokens, spreadsheet exports containing personal data, photographs of identity documents. None of that is transmitted, and the tools keep working if you disconnect from the network after the page loads.
Other categories
- Hash & Checksum tools — Generate MD5, SHA-1, SHA-256, SHA-512 and HMAC digests, and verify a downloaded file against a published checksum — all computed in your browser.
- Encoding & Decoding tools — Base64, Base64URL, percent-encoding, HTML entities, hexadecimal, binary and JWT.
- Text Tools tools — Count words, convert naming conventions, deduplicate and sort lists, generate slugs and placeholder text, and extract structured values out of prose.
- Image Tools tools — Compress, resize and convert images in the browser.
- PDF Tools tools — Assemble JPEG and PNG files into real PDF documents.