ConverterKit: Media Tools

Changing format is free, with no limit and no ads. Nothing ever leaves your iPhone.

Convert photos, video, audio and PDFs on your iPhone. Nothing is uploaded — every conversion runs on the device, so a 4K video never leaves your hands and nothing waits on a server.

CHANGING FORMAT IS FREE • Photos — HEIC, JPEG, PNG, TIFF. WebP and Apple ProRAW open too. • Video — MP4 (H.264) for anywhere, HEVC for half the size, or GIF. • Audio — MP3, M4A, WAV. • PDF — images to a PDF, or a PDF back to images. One file at a time, with no limit on how many you convert, no watermark, no ads and no account. Converting several at once is part of Pro.

PRO ADDS THE TOOLS • Compress to a size — hit 25 MB for mail, or 10 MB for chat. Photos land at or under the number you pick. • Resize — half or a quarter of the pixels. • Change speed — 0.5× to 2×, with the pitch kept. • Extract audio — a video's soundtrack as MP3 or M4A. • Remove sound — a silent copy of a video, the picture untouched. • Merge PDFs — several into one, in the order you choose. • Compress a PDF — smaller pictures inside, the text still selectable. • Remove metadata from photos and video — location only, or everything. The picture is copied, not re-encoded, so nothing is lost. • Convert several files in one go. One payment. Not monthly, not yearly.

BEFORE YOU CONVERT, NOT AFTER Most conversions show what the file will weigh before you tap — measured, not guessed, for photos and audio. Where a size cannot honestly be known before encoding, as with GIF, no number is shown rather than a wrong one. Most converters tell you afterwards.

FROM THE SHARE SHEET Convert straight from Photos or Files without opening the app. ConverterKit appears under More the first time; tap More › Edit to pin it.

Requires iOS 26. iPhone only.