Free tools to edit vertical video: TikTok, Reels & Shorts
Three tools that solve concrete problems when you prep vertical content: keeping the app's interface from covering your text, cropping without losing what matters in the shot, and checking that your subtitles read comfortably. No signup, nothing to install, and your files never get uploaded to any server.
Safe zone checker
Overlay the real TikTok, Reels or Shorts interface on your image or video and make sure nothing important gets covered.
Check safe zone →9:16 focal-point crop
Mark the part of the image that matters and get the exact crop in pixels and percentage, without distorting anything.
Calculate crop →Subtitle speed calculator
Paste your .srt and find out, line by line, which subtitles read comfortably and which fly by too fast.
Analyze subtitles →Built for the pace of short-form
Editing for vertical has its own rules: each app's interface covers different parts of the screen, the 16:9 → 9:16 crop is almost never automatic, and subtitles that work in film read far too slowly in a 30-second clip. Vertikit brings together three focused tools for those three problems, without distracting you with features you'll never use.
Everything runs in your browser. No image, video or subtitle file is uploaded to a server: processing happens with canvas and HTML5 video, right on your device. Use it on your phone, on your computer, as many times as you like.
Pick your tool
Safe zones, focal-point crop or the subtitle speed calculator.
Add your file
An image, video or .srt, depending on the tool. Nothing gets uploaded anywhere.
Download or copy the result
A reference screenshot, crop coordinates or the full breakdown of your subtitles.
Frequently asked questions
Is Vertikit free?
Yes. All three tools are free, with no usage limits and no account required.
Are my files uploaded to a server?
No. Images and videos are processed entirely in your browser using canvas and HTML5 video. They never leave your device.
Do I need to install anything or create an account?
No. It works straight from the browser, on desktop or mobile, with no signup.
Does it work with TikTok, Instagram Reels and YouTube Shorts?
Yes, all three tools are built specifically for the 9:16 vertical format those three platforms use.