CompressKit

CompressKit shrinks and converts your files — without ever uploading them. Compress videos, photos, PDFs, audio and archives with smart presets tuned to each file type, or convert between formats: extract the audio from a video, turn a clip into a GIF, render PDF pages to images, and more. Everything runs entirely on your device using Apple's native frameworks — no accounts, no cloud, no trackers, and not a single network request. • Compress video, images, PDF, audio and ZIP archives • Convert between formats — audio extraction, GIF maker, PDF rendering • Smart presets that balance size and quality automatically • Fine-tune quality, bitrate and resolution yourself • Batch process many files at once in the background • Strip GPS location and personal metadata with one tap • Save to Files, save to Photos, copy, or share anywhere Private by design: no sign-up, no analytics, no tracking. Your files never leave your iPhone.