Convert Videos for TikTok, Reels and YouTube Shorts Online

A free tool for converting horizontal videos into vertical reels for Instagram, TikTok, and YouTube Shorts. Resize, crop, and adjust aspect ratio — all processed in your browser.

How to Convert Video for TikTok & Instagram Reels

Upload your video

Drag and drop or click to select any video file. MP4, MOV, AVI, MKV, and WebM are all supported.

Choose a platform

Select TikTok, Instagram Reels, YouTube Shorts, or another preset. The aspect ratio and resolution are set automatically.

Adjust the frame

Choose Fill, Fit, or Crop mode. Drag the video to position it perfectly within the vertical frame.

Enhance (optional)

Switch to the Manual tab to adjust brightness, contrast, saturation, speed, or trim the video.

Export and download

Click Export, wait for processing, then download your vertical reel ready for uploading.

Convert any video to Reels, TikTok, or YouTube Shorts with one-click presets

Process

Drop video file here or click to browse

MP4, WEBM, MOV, MKV, AVI, WMV, FLV, 3GP

Loading file...

Upload a file to start

📱

0:00 / 0:00

Remove pauses (AI cut)

Automatically finds and removes silent gaps and dead air to make your video tighter.

Burn captions (subtitles)

#1e40af

Processing cancelled. You can start again when ready.

Your reel is ready!

Features

Platform Presets — one-click presets for TikTok, Instagram Reels, YouTube Shorts, Instagram Stories, and more Three Crop Modes — Fill, Fit, or Crop with drag to reposition Blur Background — beautiful blurred video background in Fit mode Video Enhancement — adjust brightness, contrast, and saturation with live preview

What You Can Do

Convert horizontal video to vertical 9:16 format for TikTok, Instagram Reels, and YouTube Shorts
Choose between Fill, Fit, and Crop modes with drag-to-reposition
Add blur, black, white, or custom color background in Fit mode
Enhance video with brightness, contrast, and saturation controls
Change playback speed from 0.25x to 4x with automatic audio adjustment
Trim video length and adjust audio volume in one tool

Why Use Reels Maker

Reels Maker processes everything in your browser via FFmpeg WebAssembly. Get instant preview of your reel before exporting. One-click platform presets make it easy, while the Manual tab gives you full control over enhancement, speed, trim, and audio. No watermarks, no sign-up, no limits.

Frequently Asked Questions

What video formats are supported?

MP4, WebM, AVI, MKV, MOV, WMV, FLV, and 3GP. The output is MP4 (H.264) or WebM — compatible with all social media platforms.

What is the best aspect ratio for TikTok and Reels?

9:16 (1080×1920 pixels) is the standard vertical format for TikTok, Instagram Reels, and YouTube Shorts. Our tool sets this automatically.

How does Fit mode work?

Fit mode shows your entire video inside the target frame. The empty space is filled with a blurred version of your video, a solid color, or black/white background.

Can I adjust where the video is positioned?

Yes. In Fill and Fit modes, drag the video on the canvas to reposition it exactly where you want.

What is the maximum file size?

Up to 500 MB. Large files may take longer to process. For best results, trim your video to the desired length first.

Can I change the video speed?

Yes. Switch to the Manual tab and adjust speed from 0.25x (slow motion) to 4x (fast forward). Audio tempo adjusts automatically.

What is the maximum video duration for each platform?

TikTok: up to 10 minutes. Instagram Reels: up to 3 minutes. YouTube Shorts: up to 3 minutes. Instagram Stories: up to 60 seconds.

💡 Want us to improve this tool just for you?

We can — and it's free! Just send us a quick message with your idea. If you'd like to discuss it in detail, leave your email and we'll get back to you. You can stay anonymous.

How do you rate this tool?

Thank you for your rating!

Change my rating

Want to leave a comment?

Want to share more? Leave a comment!

Thank you! Your comment will appear after moderation.

Who is this tool for?

Published 07 Mar 2026 Updated 10 Jun 2026