Offline ConverterConvert it — not on a stranger's server.
The free site caps you at 100 MB, stamps a watermark on the result, or wants an account first. Drag the same 4 GB video, folder of HEIC photos or 300-page PDF in here and your Mac does it locally — no upload, no limit, no queue. Works with the Wi-Fi off.
macOS 11+ (Apple Silicon) & Windows · Free 3-day trial, then $29.99 once — no subscription
The four walls people hit — and what happens here
Every one of these is a sentence someone typed into Google this week. If you've hit even one of them, you already know why a local app exists.
“Free, no limit”
Free sites cap you at 100 MB and throttle the queue until you subscribe. Here the only limit is your disk — a 4 GB video is just a 4 GB video.
“Without uploading”
Client contracts, passport scans, unreleased footage. Nothing leaves the machine, so there is no server to trust and nothing to delete afterwards.
“Without losing quality”
No re-encode surprise, no watermark burned into the corner. You pick the quality; trims are cut without touching the rest of the file.
“…and now the next 200 files”
One folder in, one pass, done. Batch is the default, not a paid add-on — and a watch folder can do it for you while you work.
On-device superpowers
Heavy features that usually cost a subscription — running locally on your Mac, free of the cloud.
Background remover
Cut out the background of any photo with an on-device AI model (U²-Net). No subscription, no upload.
Speech to text
Transcribe audio and video locally with Whisper. Generate subtitles without sending a single byte to the cloud.
Text to speech
Turn text into natural narration in 23 languages — entirely offline, on your own machine.
Watch folders
Drop a file in a folder and have it auto-converted. Set up an assembly line that runs while you work.
Everything it can convert
One Mac app that replaces a dozen sketchy websites. Drag, drop, done.
Video
MOV, MP4, MKV, WebM, AVI, WMV, FLV and more — convert, compress, trim and crop.
Audio
MP3, WAV, FLAC, AAC, M4A, OGG, Opus, WMA, AIFF — convert and trim losslessly.
Images
HEIC, JPG, PNG, WebP, AVIF, TIFF, BMP, SVG, ICO — convert, resize and compress.
Camera RAW
CR2, NEF, ARW, DNG straight from your camera to shareable JPG or PNG.
Documents
PDF, Word, RTF, TXT, HTML, Markdown — convert, merge, split and extract pages.
Ebooks
EPUB, MOBI, AZW3 — move books between your Kindle, Apple Books and beyond.
Every tool, running offline on your Mac
Background removal, transcription, text-to-speech, compression, PDF tools and more — all on-device, no cloud, no limits.
Which Mac converter is right for you?
Honest comparisons and alternatives for converting files on macOS — offline vs online, free vs paid, watermark-free.
Three steps. No internet required.
From file to finished in seconds.
Drag your files in
Drop one file or a thousand. Batch is built in from the start.
Pick a format
Choose the output and tweak quality, size or resolution if you want.
Convert on-device
Everything runs locally. Your files are saved straight to your Mac.
Local app vs. online converters
The difference you feel on the very first file.
$18.99 once. Then it's yours.
You are not renting conversion minutes from anyone. You buy the app once and it keeps working — offline, on your own machine, for as long as the Mac lasts.
- Free for 3 days — the full app, not a crippled demo
- Then $18.99 once for the first 50 licenses ($29.99 after). No subscription
- Works on 3 of your own computers, forever
- 14-day money-back guarantee
Questions, answered
Is it really 100% offline?
Yes. Every conversion runs on your Mac with bundled engines (FFmpeg, Sharp, and on-device AI models). You can disconnect from the internet and everything still works. Your files are never uploaded.
Will my files have a watermark?
Never. There are no watermarks, no quality throttling and no hidden limits on the output.
Does it run on Apple Silicon?
Yes — it's built natively for Apple Silicon (M1, M2, M3, M4). macOS 11 Big Sur or newer is recommended.
Can I batch-convert a whole folder?
Absolutely. Drop in as many files as you like and convert them in one pass. You can even set up watch folders for automatic conversion.
How is this different from an online converter?
Online converters upload your private files to a remote server, add watermarks, cap file sizes and need a connection. This is a native Mac app — faster, private, unlimited, and it works on a plane.
What does it cost?
The first 3 days are free — the full app, not a limited demo. After that it's $29.99 once, forever, on up to 3 of your own computers. No subscription, no per-file charge, and a 14-day money-back guarantee if it isn't for you.
Why not just use HandBrake or Preview? They're free.
If HandBrake covers your job, use it — it's genuinely great at video. This exists for the rest of the day: HEIC and RAW photos, PDFs, audio, documents, background removal and transcription, all in one window, batching a whole folder without presets to learn. You're paying for the hour you don't spend stitching four free tools together.
Stop uploading your files to strangers.
One app for every format, running on your own machine. Free for 3 days, then $29.99 once.
macOS 11+ (Apple Silicon) & Windows · No account, no subscription