ConvertThoseFiles User Guide

Everything you need to convert, merge, split, compress, and OCR files on ConvertThoseFiles — plus a downloadable, printable PDF version.

Upload process

  1. Open the tool you need from the tools page or a category hub.
  2. Drag & drop your file, or click to select.
  3. The conversion runs locally in your browser — your files are never uploaded.
  4. Download the result — your files stay on your device the whole time.

Supported formats & file sizes

Every tool on ConvertThoseFiles is free to use — there are no plans, subscriptions, or premium tiers. Supported formats and per-tool size limits are listed on each individual tool page.

File security

Read the full disclosure on the File Security & Privacypage. No conversion uploads your files — everything runs locally in your browser.

Resources

The Resource Center organizes every tool by category. The blog publishes educational content on file formats and best practices.

Best practices

  • Use browser-first tools for sensitive files.
  • Compress images before merging them into a PDF for smaller outputs.
  • Use OCR before extracting text from scanned PDFs.
  • Save multi-step routines as workflows.