Guides

How to Convert Any File Format Online — Free Guide

Complete guide to converting images, documents, audio, video, and data files between 100+ formats using free online tools.

Convert Any File, Any Format

ToolBox offers 380+ file conversion tools covering images, documents, audio, video, data formats, ebooks, subtitles, fonts, archives, 3D models, and CAD files. Every conversion is free with no file size limits on most tools.

Image Conversions

Convert between JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, TIFF, SVG, and more. Modern formats like WebP and AVIF offer 30-50% smaller file sizes than JPG with equal quality — our converters make it easy to optimize your images.

Document Conversions

Convert PDFs to Word, Markdown to HTML, DOCX to plain text, and more. Our document pipeline supports all major office formats including ODT, RTF, and Pages.

Audio & Video

Convert MP3, WAV, FLAC, OGG, AAC, and more audio formats. For video, convert between MP4, MKV, WebM, AVI, MOV, and extract audio or create GIFs from video files.

Data & Developer Formats

Convert CSV to JSON, XML to YAML, TOML to JSON, and every combination in between. Essential for data engineering and API development work.