File Tools – Online Utilities & Calculators
Local file utilities for hashes, file metadata, structured text, subtitles, CSV, JSON, XML, and batch rename previews. Downloads are generated on your device.
File Hash & Checksum Generator
Generate cryptographic checksums (SHA-256, SHA-384, SHA-512, SHA-1, MD5) and verify file integrity by comparing expected vendor hashes locally.
File Analyzer / File Information
Comprehensive browser-native file analyzer to inspect MIME types, dimensions, media streams, character counts, and cryptographic hashes without server uploads.
CSV to JSON Converter
Convert tabular data between CSV and JSON with quoted-field handling, validation, copy, and download.
XML Formatter & Validator
Pretty-print and minify XML documents with clear indentation and instant parsererror line/column syntax diagnostics.
JSON to YAML Converter
Move configuration data between JSON and a practical YAML subset without uploading content.
Batch File Rename Preview
Generate renamed copies as a ZIP-free download list preview; original files are never modified.