20+ Free Data Conversion Tools | Utilko
Free online data conversion and analysis tools — CSV to JSON, JSON to CSV, XML converter, YAML tools, number converters, and text diff tools. No sign-up.
Free Online Data Conversion & Analysis Tools
Data analysts, data engineers, and anyone who works with structured data needs quick conversion utilities. These browser-based tools handle the most common data format transformations without requiring Python scripts or paid services.
Format Converters
- CSV to JSON — Convert spreadsheet data to JSON arrays for use in APIs, databases, and JavaScript applications.
- JSON to CSV — Flatten JSON data into CSV for analysis in Excel, Google Sheets, or pandas.
- XML to JSON — Transform XML API responses or config files into JSON format.
- YAML to JSON — Convert YAML configuration files to JSON for programmatic processing.
- JSON to YAML — Convert JSON data to YAML for configuration management and CI/CD pipelines.
- TSV to CSV — Convert tab-separated values to comma-separated format for spreadsheet tools.
JSON Tools
- JSON Formatter — Beautify and validate JSON data for inspection and debugging.
- JSON Minifier — Compact JSON for smaller file sizes and faster transmission.
Comparison & Diff
- Diff Checker — Compare two datasets side-by-side to identify changes, additions, and deletions.
- Text Compare — Compare raw text or data files line by line.
- Remove Duplicate Lines — Deduplicate lists and dataset entries quickly.
Number & Unit Conversion
- Number Base Converter — Convert between decimal, binary, octal, and hexadecimal number systems.
- Decimal to Binary — Convert decimal integers to binary representation.
- Data Storage Converter — Convert between bytes, KB, MB, GB, and TB for capacity planning.
- Text to Binary — Encode text as binary (ASCII) for data encoding exercises and security analysis.
Hashing & Verification
- Hash Generator — Generate MD5 and SHA-256 checksums to verify file integrity after data transfers.
Featured Tools
Try these free tools directly in your browser — no sign-up required.
CSV to JSON
Convert CSV files and data to JSON format instantly. Supports custom delimiters, header row detection, and pretty-printed or minified output.
JSON to CSV Converter
Convert JSON arrays to CSV format instantly. Transform nested JSON data into spreadsheet-ready CSV files with automatic header detection.
XML to JSON
Convert XML to JSON and JSON to XML instantly. Handles attributes, namespaces, and nested elements. Great for REST APIs and data transformation.
YAML to JSON
Convert YAML to JSON and JSON to YAML instantly. Essential for working with Kubernetes configs, Docker Compose files, CI/CD pipelines, and APIs.
Diff Checker
Compare two texts or code files side by side and highlight differences. Find added, removed, and changed lines instantly with colour-coded diff output.
JSON Formatter
Format, beautify, and validate JSON instantly. Paste raw JSON and get a clean, indented, human-readable output with syntax error detection.