ConverterKit: Media Tools

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.