Resize Video Online for Every Channel
Resize video online for Reels, TikTok, YouTube, and web in a few clicks—then keep resized versions, comments, and approvals organized in a single creative production workspace.
How to Use the Resize Video Tool
Resize video to preset or custom dimensions in minutes—ideal for social formats, web use, and re-exporting at a different resolution.
Upload a Video File
Drop a video from your device or click to browse. The tool accepts MP4, MOV, WebM and other common formats. Everything runs in your browser—your file stays on your machine.
Choose a Preset or Custom Size
Pick a preset like Landscape (1920×1080), Square, Instagram Reel, TikTok, or YouTube, or choose Custom Size and enter width and height. You can lock aspect ratio to scale proportionally.
Adjust Dimensions and Export Format
Set your target width and height, then choose export format: MP4 or MOV for best compatibility (via FFmpeg in-browser), or WebM (VP9/VP8) for faster processing and smaller files.
Resize and Download
Click to resize. The tool resizes the video in your browser and then downloads the resized file. No uploads to a server—resizing is local and private.
Share for Review on Kreatli
For team workflows, upload your resized video to Kreatli to collect frame-accurate feedback, approvals, and keep all versions and comments in one place.
Resize Video Explained
A video resizer changes the resolution (width and height) of a video. Use presets for social and web formats, or enter custom dimensions. Processing runs locally in your browser.
Presets & Custom
Presets cover common sizes: Landscape (1920×1080), Square (1080×1080), Instagram Reel, TikTok, YouTube, and more. Use Custom Size for any width and height; keep aspect ratio locked to avoid letterboxing.
Export Formats
MP4/MOV use in-browser FFmpeg for best compatibility. WebM (VP9/VP8) uses canvas recording—faster for large files and good for web and social. Max input size is 500 MB.
Privacy & Security
Resizing runs locally in your browser. Your video is not uploaded to a server. For secure cloud storage, versioning, and review workflows, use Kreatli secure asset storage.
Use Cases
- Adapt landscape footage for vertical Reels, TikTok, or Stories.
- Export at 1080p or 720p for web or email.
- Create square or custom aspect ratio for social and ads.
Why Resize Video Online With Kreatli
Combine a fast online resizer with version-aware storage, frame-accurate review, and approvals so every export fits your channels and your workflow.
Resize for Every Format
Use presets or custom sizes to resize video online for vertical, square, and landscape formats—covering Reels, TikTok, YouTube, and more from one workflow.
Keep Versions Together
Upload resized exports into version stacks so 16:9, 9:16, and square cuts stay in one place with clear history and approvals.
Review Resized Video With Context
Share review links for resized exports so clients see the right aspect ratio and leave frame-accurate feedback tied to that specific cut.
Frequently Asked Questions
Common questions about resizing video, export formats, presets, and privacy.
Still Have Questions?
If you didn’t find what you were looking for, contact us at support@kreatli.com.
Free Tools for Video Teams
Explore free tools that complement resizing video online—frame extraction, safe zones, and more.
Resize Video
Resize video to custom or preset dimensions in your browser. No uploads, no sign-up—everything runs locally.
Safe Zone Checker
Preview where UI overlays appear on Instagram Reels, TikTok videos, and YouTube Shorts to ensure your content stays visible.
YouTube Shorts Safe Zone Checker
Test your YouTube Shorts video layout before publishing. Preview where channel name, subscribe button, like button, comments, and video controls appear.
Video Frame Extractor
Scrub through a video, capture the moments you like, and download still images as PNG/JPG. Everything runs in your browser - no uploads, no watermark, no sign-up needed
See How Teams Resize Video Online in Practice
Explore guides and comparisons that show how creative teams resize video online and keep versions and approvals organized in Kreatli.
More Resources
Explore more Kreatli features that support multi-channel video workflows, from secure storage to frame-accurate review.
Creative Workspace
Unified workspace for creative production. Organize assets, manage projects, and collaborate with your team.
Review & Approval
Frame-accurate revisions and approvals for video content. Streamline your feedback workflow.
Secure Asset Storage
Enterprise-grade storage for creative assets. Organize files, track versions, and protect your media with reliable infrastructure.
Ready to Resize Video Online and Keep Every Cut Organized?
Use Kreatli to resize video online, manage versions, and collect frame-accurate feedback across every channel.