KOKOConverter Key Features

Local, In‑Browser Processing

All conversions run client-side in your browser so files are never uploaded to remote servers, preserving privacy and reducing processing time.

50+ Format Support

Convert PDFs, images (WebP, JPG, PNG, GIF, TIFF, etc.), audio (MP3, WAV, M4A, FLAC, OGG), and video (MP4, MOV, AVI, WebM and more) across dozens of format pairs.

Batch Conversion

Process multiple files at once to save time — ideal for bulk image format changes or compressing many PDFs/videos in one session.

No Signup, Unlimited Free Use

Completely free with no accounts, no hidden fees, and no usage caps — start converting immediately without providing personal information.

Cross‑Platform & High‑Quality Output

Works on Windows, macOS, Linux, iOS, and Android with options to preserve or adjust output quality and compression settings.