100% Private: Your Clips Never Leave Your Device
Free video tools for creators. Right in your browser.
Add captions, cut the silences, trim, resize and compress your videos. Nothing to upload, nothing to install, no sign-up.
No video? Try one:
- Never uploadedVideos are processed on your device.
- No upload waitStart editing the moment you drop a file.
- Free, no watermarkNo sign-up, nothing to install.
- AI on your deviceCaptions and silence cutting, run locally.
Every video tool you need, none of the uploads
Free tools that work in your browser. Pick one to get started.
AI tools
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Why ClipCocoon is different
Most online video editors upload your clip to their servers first. A cocoon is where change happens safely, out of sight, and that’s how we handle your videos.
Typical online video tools
- Your video is uploaded to a remote server
- You wait for the upload, then wait in a queue
- A copy sits on someone else’s computer
- Free plans add watermarks or need an account
ClipCocoon
- Your video stays on your device
- Processing starts as soon as you drop it in
- Your videos are never stored
- Free, no sign-up, no watermark
How it works
- 1
Pick a tool
Add captions, cut silences, trim, resize or compress.
- 2
Drop in your video
It opens right in your browser. Nothing is uploaded.
- 3
Download
Your new video saves straight to your device. The original is never changed.
Want the details? How your videos stay on your device
Guides for creators
Step-by-step help for captions, vertical video, file sizes and more, on any device.
- Guide How to Transcribe an Interview for Free (Without Uploading It)Recording tips, free private transcription, and checking quotes. Read guide
- Guide How to Add Captions to TikTok, Reels and ShortsBuilt-in caption options in each app, and when to burn them in. Read guide
- Guide How to Remove Silence and Dead Air from a Video or PodcastManual and automatic ways to tighten up talking videos. Read guide
- Guide How to Make a Video Vertical (9:16) for TikTok, Reels and ShortsCrop or blurred background: picking the right way for your clip. Read guide
- Guide How to Compress a Video for Discord (Under 10 MB)Why videos are big, and how to get one under 10 MB. Read guide
- Guide SRT vs VTT: Subtitle Files ExplainedThe two subtitle formats, and which one each platform wants. Read guide
Questions, answered
Are my videos really never uploaded?
Yes. Every ClipCocoon tool runs inside your web browser. Your video is read and processed on your own device and is never sent to our servers or anyone else. You can check this yourself: open your browser’s developer tools, watch the Network tab and use any tool. No request carries your video.
Is ClipCocoon free?
Yes. Every tool is free to use, with no sign-up and no watermark on your videos.
How do the AI tools work without a server?
Auto Captions and the Silence Remover use small open-source AI models that run on your device. The first time you use one, your browser loads the model once (we ask first and show the size: about 2 MB for silence detection and 80–110 MB for captions). After that it loads from your browser’s storage in a second or two.
Which browsers and devices work best?
A recent version of Chrome, Edge or Safari on a computer gives the fastest results. Firefox works too, but can’t open iPhone (HEVC) videos and is slower for captions. Phones work for short clips; long videos need the memory of a laptop or desktop.
How long can my videos be?
Up to 10 minutes at up to 1080p for now. Everything happens in your browser’s memory, so this keeps exports quick and reliable on everyday computers. We’ll raise the limit as we make exports stream straight to your disk.
Are the captions accurate?
They’re very good for clear speech, but no automatic captions are perfect, especially with music, background noise, names or slang. That’s why every word can be edited before you export. Please check your captions before posting.
Your clips stay with you.
Free, private video tools that never upload a thing. Try one now.
Choose a tool