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The complete toolbox
One tab for the work between the work.
Search by task, choose a converter and keep your flow moving. Every tool has a dedicated, shareable page.
01JSON
JSON Formatter
Beautify JSON with readable indentation and immediate syntax feedback.
Open tool ↗02JSON
JSON Validator
Validate JSON and get a clear summary of its structure and values.
Open tool ↗03JSON
JSON Minifier
Remove unnecessary JSON whitespace while preserving every value.
Open tool ↗04JSON
JSON Key Sorter
Sort object keys recursively for stable diffs and predictable snapshots.
Open tool ↗05JSON
JSON to TypeScript
Infer practical TypeScript interfaces from a real JSON sample.
Open tool ↗06JSON
JSON to Zod
Turn sample JSON into a readable Zod validation schema.
Open tool ↗07JSON
JSON to JSON Schema
Infer a Draft 2020-12 JSON Schema from representative data.
Open tool ↗08Data
JSON to YAML
Convert JSON into clean, human-readable YAML configuration.
Open tool ↗09Data
YAML to JSON
Parse YAML safely and return consistently formatted JSON.
Open tool ↗10Data
JSON to CSV
Flatten JSON records into spreadsheet-ready CSV rows.
Open tool ↗11Data
CSV to JSON
Convert CSV rows into an array of named JSON objects.
Open tool ↗12Data
JSON to XML
Build well-formed XML from nested JSON objects and arrays.
Open tool ↗13Data
XML to JSON
Parse XML documents into readable, structured JSON.
Open tool ↗14Frontend
JSON to HTML Table
Generate semantic HTML table markup from JSON records.
Open tool ↗15Frontend
JSON to Markdown Table
Turn JSON records into a clean Markdown table for documentation.
Open tool ↗16Encoding
URL Encoder / Decoder
Encode or decode URL components without damaging Unicode text.
Open tool ↗17Encoding
Base64 Encoder / Decoder
Encode UTF-8 text to Base64 or decode Base64 back to text.
Open tool ↗18Encoding
HTML Entity Encoder / Decoder
Encode unsafe HTML characters or decode entities into readable text.
Open tool ↗19Frontend
JWT Decoder
Decode JWT headers and payloads locally without verification or transmission.
Open tool ↗20Frontend
Unix Timestamp Converter
Convert Unix seconds or milliseconds into ISO and local dates.
Open tool ↗21Frontend
HEX / RGB / HSL Converter
Convert CSS colors between HEX, RGB and HSL representations.
Open tool ↗22Frontend
UUID Generator
Generate cryptographically strong UUID v4 identifiers in bulk.
Open tool ↗23Frontend
SHA-256 Hash Generator
Create a lowercase SHA-256 digest from UTF-8 text.
Open tool ↗24Frontend
CSS Formatter / Minifier
Format compact CSS for reading or minify CSS for delivery.
Open tool ↗Built for real data
Standards-based parsers handle quoted CSV fields, YAML structures, XML attributes and Unicode-safe Base64.
Reliable parsers →Fast handoff
Copy the result, download a correctly named file or jump straight to the reverse converter.
Input → output → shippedPractical field notes
Use the format. Understand the edges.
Concise guides for safer conversions, stronger type boundaries and fewer “why did this parse differently?” moments.
01 · 6 min read
How to format and validate JSON without leaking data
A practical workflow for reading unfamiliar JSON, finding syntax errors and keeping sensitive payloads on your device.
Read guide ↗02 · 7 min readFrom JSON response to safe TypeScript types
Generate a useful first draft from real API data, then harden it for nullability, optional fields and changing backend responses.
Read guide ↗03 · 5 min readJSON vs YAML: choosing a configuration format
Compare strict machine-friendly JSON with concise human-edited YAML and convert safely between the two.
Read guide ↗04 · 6 min readHow to convert JSON and CSV without broken rows
Handle headers, nested objects, quoted commas and spreadsheet-oriented data shapes predictably.
Read guide ↗05 · 8 min readFrontend encoding cheat sheet: URL, Base64 and HTML entities
Know which encoding belongs in URLs, transport wrappers and HTML text—and which problems encoding cannot solve.
Read guide ↗06 · 6 min readHow to inspect JWT tokens safely
Decode headers and claims without confusing readable payloads with verified identity or authorization.
Read guide ↗Questions, parsed
Small answers to common edge cases.
Still deciding? Start with the formatter—your input never leaves the browser.
Are XXF developer tools free?+
Yes. Every converter is free to use without an account, watermark or daily limit.
Does XXF upload my JSON or tokens?+
No. Transformations run inside your browser tab. XXF does not receive, store or inspect your source data.
Which JSON conversions are supported?+
XXF supports formatting, validation, minification, key sorting and conversion to TypeScript, Zod, JSON Schema, YAML, CSV, XML, HTML and Markdown.
Can I use XXF on a phone or tablet?+
Yes. The editor, tool search and converter pages are responsive and work with touch, keyboards and modern mobile browsers.