ByteSlim Tools

Explore ByteSlim's suite of free, private browser tools — compress PowerPoint files up to 70% smaller, shrink audio files, and keep every byte on your device.

PowerPoint tools

Understand and optimize .pptx files — analysis, compression, fonts and media.

• PPTX Compressor — analyze why your file is large, then reduce it up to 70% with an exact target size option; slides stay fully editable
• Font Checker — see which typefaces your PPTX embeds and what they cost in file size
• Extract Images — browse every picture inside a presentation at original quality and save them individually or as a zip

Audio tools

• Audio Compressor — batch-compress MP3, WAV, M4A and OGG files up to 500 MB each

Curious how files stay on your device? Read the Privacy Architecture — and verify it yourself in DevTools in 30 seconds.