CSV, JSON & Data Tools
Format, convert, and validate JSON, CSV, YAML, and Excel-friendly data — free online.
⭐ Featured tools
All tools in this collection
Full directoryCSV ↔ JSON Converter
Convert CSV tables to JSON and back
CSV to JSON Converter
Parse CSV rows into JSON array
CSV to Markdown Table
Convert CSV rows to MD tables
Excel to PDF Converter
Turn spreadsheets into a printable PDF
Fapiao XML Parser
Free online Fapiao XML Parser — fast, private browser tool on Fneno.com.
INI to JSON Converter
Parse INI config files to JSON
JSON Formatter Chinese Ui
Free online JSON Formatter Chinese Ui — fast, private browser tool on Fneno.com.
JSON to CSV Converter
Convert JSON array of objects to CSV
JSON to TypeScript
Generate TS interfaces from JSON
JSONPath Extractor
Query JSON with path expressions
JWKS JSON Validator
Validate JWK Set JSON for OIDC providers
PDF to Excel (CSV)
Extract PDF text to CSV spreadsheet
Reimbursement Excel Generator China
Free online Reimbursement Excel Generator China — fast, private browser tool on Fneno.com.
Schema.org JSON-LD Generator
Create FAQ, Product, Organization structured data
TOML to JSON Converter
Convert TOML config to JSON
XML Formatter
Format, validate, and minify XML documents
YAML ↔ JSON Converter
Convert between YAML and JSON both ways
More collections
Free PDF Tools Online
Merge, compress, convert, split, and edit PDF files — 100% free in your browser.
AI Writing & Content Tools
Paraphrase, summarize, translate, write emails, articles, and social posts with Fneno AI.
Free Image Tools Online
Compress, resize, convert, crop, remove background, and edit images — all in your browser.