Convert 1,800+ formats, run a full PDF toolkit, transcribe audio, upscale photos, cut out backgrounds. It all runs on your own machine, with no caps and nothing ever uploaded. One app, Mac and Windows.
You drag your file into a website and it vanishes into someone else's server. You can't see what runs on it, whether it's copied, how long it's kept, or who else takes a look. You get a download link back and hope for the best.
In 2025 the FBI's Denver office and Malwarebytes flagged a wave of free online converters that quietly install malware or scrape whatever you upload. MIT's IT team is blunt: don't use them. You can't audit a black box. You're just trusting it.
Two files a day. A watermark stamped across your output. An account you didn't want. A subscription to save a single PDF. For a tool that should take one click.
Morphjet has no black box because your files never leave your computer. The conversion happens right there on your machine. There's nothing to upload, and nothing to trust.
The on-device difference
Morphjet installs like any other app, with everything it needs built in. When you convert a file, the work happens right there on your machine, the same way Preview or Photos opens one. No upload, no queue, no server in the middle.
Your files are read from your disk and written back to it. They never go over the network.
Open the app and convert. No sign-up, no login, nothing that ties a file back to you.
On a plane, on hotel wifi, air-gapped at work. If your computer runs, Morphjet runs.
Everything you throw at it
1,800+ conversions across the formats you hit every day, and the ones you hit once a year and can never remember how to open.
Including HEIC from your iPhone.
22 camera formats, straight off the sensor.
Word, PDF, and everything around them.
Screen recordings, phone clips, old formats.
Lossy, lossless, and the awkward ones.
For your Kindle, your Kobo, whatever.
Plus spreadsheets, presentations, vector art, comic archives, subtitles, and a long tail of scientific and legacy formats. If you've heard of it, it's probably in here.
The app runs in six languages too, and follows your system language on first launch: English, German, Spanish, French, Italian, and Portuguese.
Beyond converting
The converter, the compressor, the PDF tool, the folder-watcher, the right-click helper. One app, and it all runs offline.
Drop a whole folder. Convert five files or five thousand. No two-a-day cap, no upgrade wall.
Point Morphjet at a folder. Anything that lands there gets converted, renamed, and filed automatically. Set it once.
Need it under 8 MB for an email? Pick a target size and Morphjet finds the quality that lands just under it.
Merge, split, rotate, compress, unlock, and turn images into a PDF. The whole PDF toolbox, right there on your desktop.
Make a scanned PDF searchable in seconds. The recognition runs right on your machine, so even a sensitive scan stays put.
Convert straight from Finder or File Explorer without opening the app. Select files, right-click, done.
Point Morphjet at 500 files and it works through every one, same settings on all of them, no two-at-a-time cap, no re-uploading each file to a website.
Anything that lands in a watched folder gets converted, renamed, and filed on its own. Perfect for phone photos, screen recordings, or scans you drop in all week.
Need it under 8 MB for an email? Pick a target size and Morphjet finds the quality that fits. This one came down 92% with nothing you'd notice.
There's a real command-line too, for anyone who wants to script it.
On-device AI
Every other tool's "AI" quietly uploads your file to a server to do the work. Morphjet does it right on your own computer instead, the same privacy promise, applied to the clever stuff.
Drop in a meeting, a voice memo, or a video and get clean text back, or ready-made subtitles you can drop onto a clip.
Have an ebook or PDF read aloud in a natural voice, and get audio you can play in the car, on a run, anywhere.
Enlarge a tiny, old, or blurry image and get back something sharp, 2× or 4× the size, without the mushy edges.
Lift the subject cleanly out of a photo and get a see-through cut-out, good enough for product shots and profile pics.
Take the vocals out for a karaoke track, or split a song into its separate parts to remix or practice over.
Cloud AI tools bill you per file or per month. Morphjet's run on the computer you already own, no per-use fee, and they keep working with the wifi off. They ask for a little more power than a normal convert: 8 GB of memory to get started, more if you want it faster.
Proof, not promises
"Private" is easy to say and hard to prove, unless the app runs on your own machine, where you can actually check.
Turn on your firewall, or pull the ethernet cable, and convert a file. It still works, because nothing you convert was ever going anywhere.
We didn't reinvent the risky part. The code that actually reads and writes your files is battle-tested tooling professionals have leaned on for years, not something we cobbled together last week. Our job was to wrap it in an app you'd want to use.
Analytics are off unless you switch them on. No tracking pixels, no "anonymous usage data" you didn't ask for.
A clean app that does one job. No toolbars slipped into the installer, no upsell pop-ups, no "download manager." Just the thing you paid for.
How it compares
Online tools, browser-based converters, self-hosted containers, and Mac-only apps each give up something. Morphjet is the one that doesn't make you pick.
| Capability | Morphjet | Online converters | Browser ‘local’ tools | Self-hosted (Docker) | Mac-only apps |
|---|---|---|---|---|---|
| Files stay on your device | |||||
| Works with no internet | |||||
| No upload size limit | |||||
| No watermark, no daily cap | |||||
| No account required | |||||
| Batch + watch folders | |||||
| OCR + full PDF tools | |||||
| On-device AI (speech, upscale, cut-out) | |||||
| Mac and Windows | |||||
| Nothing to set up or self-host | |||||
| One-time price |
A check means yes. A dash means sometimes, or with caveats. A cross means no.
Fair questions
Yes. The files you convert are read and written on your own disk and never leave it. The app does reach the network for two small things: checking your license, and downloading what a particular format needs the first time you use it. Your actual files are never part of that. Convert with your wifi off and see for yourself.
You pay once and the app is yours to keep. No subscription, no annual renewal, no feature locked behind a higher tier later. And everyone who's here before launch gets every update free for as long as they use it, founding price included. Using the app you bought is always free, and that never changes.
Both. macOS 10.15 or newer (Intel or Apple Silicon) and Windows 10 or 11, 64-bit. Your license works on your own computers, not just one.
Six: English, German, Spanish, French, Italian, and Portuguese. The app follows your system language the first time it opens, and you can switch it any time in settings. Every conversion works the same whichever one you pick.
For some of it, sure, if you're comfortable in a terminal and don't mind tracking down the right tool for each format. Morphjet is the opposite of that: one app, one window, with batch, watch folders, PDF tools, and right-click convert. No command line, no hunting, nothing to piece together.
A few now do the conversion inside your browser tab, which is a real step up from uploading. But a browser tab has a ceiling: big files can crash it, batch is unreliable or missing, and there's no watch folder, OCR, full PDF toolkit, or on-device AI. Morphjet is a real app on your machine, with the same privacy and none of the limits.
This July. Join the waitlist and you'll get 30% off the launch price, plus one email the day it's ready, nothing else.
Still wondering something? Ask us, a human answers.
Morphjet is a one-time purchase, not another monthly bill. It launches this July for Mac and Windows. Buy it once and it's yours to keep, no renewal, no tier you have to upgrade into later.
Join the waitlist and you'll get 30% offthe founding price, locked in no matter what we run later, plus every update free for as long as you use it. One email the day it's ready, and nothing else.