Is my video file uploaded or stored anywhere?

No. All conversion happens entirely in your browser using local JavaScript. Your file never leaves your device, is never sent to our servers, and is not stored anywhere after your session ends.

What video formats are supported?

MP4 (H.264/AAC), WebM (VP8/VP9), and MOV are accepted. The browser handles decoding natively, so support depends on your browser built-in codecs.

How does the output file size work?

GIF is limited to 256 colors per frame. Enabling "High Color Quality" increases color depth at the cost of larger files. Lowering the frame rate or resolution also helps. For full color fidelity, MP4 export is recommended.

Can I create GIFs longer than 10 seconds?

Yes, but longer GIFs will have larger file sizes. We recommend keeping GIFs under 15 seconds for optimal sharing performance, though there is no hard limit.

What is palette optimization and when should I use it?

Palette (color) optimization uses a median-cut algorithm to reduce the number of colors per frame, significantly decreasing file size with minimal visual loss. Enable High Color Quality when fidelity matters more than size.

Why use a Web Worker for GIF generation?

Offloading the color quantization and LZW compression to a background thread keeps the interface responsive. The browser never freezes while encoding, so you can keep reading or adjusting settings on other tabs.

Can I add text or stickers to my GIF?

Yes! Use the caption and sticker overlays to create meme-style GIFs. You can customize font, size, color, outline, and position of both captions and stickers per frame.

What is the difference between GIF and MP4 export?

GIF is universally supported but limited to 256 colors and larger file sizes. MP4 (H.264) offers better compression and quality but may not autoplay in all contexts like GIFs do.

Do I need to install gif.js or any software?

No installations needed. Everything runs in your browser tab. gif.js is bundled with this page and executes client-side with no external dependencies.

What happens if I close the browser tab before generation finishes?

The in-progress encoding is canceled when the page unloads. Any generated Blob URL is revoked automatically, so your file is fully cleaned up and no data persists.

Private Video
GIF Maker

Convert video clips (MP4, WebM, MOV) to high-quality GIFs directly in your browser. Trim to any range, adjust frame rate and resolution, add captions and stickers — no uploads, 100% private.

Upload Video

Click to upload or drag and drop

MP4, WebM, or MOV · processed locally in your browser

GIF Options

-1 = infinite, 0 = once, 1-100 = finite repeats

Reverse

Backward playback

Normal

Forward

High Color

Better colors

Standard

Smaller files

Web Worker

Background

Main Thread

Blocks UI

GIF

Looping image

MP4

Coming soon

Social Media Preset

One-click resize for popular platforms. Overrides custom width/height until reset.

Caption Overlay

Type the words that will appear on the final GIF

Font Family

Color

Outline

Text outline

No Outline

Plain text

Everything happens on your machine. Your video stays in your browser tab — we never see, touch, or store it. gif.js encodes each frame locally, so the result is as private as it gets.

Created with the open-source gif.js library, which runs in a Web Worker by default. This page uses no analytics, no cookies, and no server side — just your browser and a free tool that stays cool under load.

How GIF Conversion Works

Simple Steps:

1Upload your video file by dragging & dropping or clicking the upload area.
2Set the start and end time of the clip you want to turn into a looping GIF.
3Adjust the frame rate, resolution scale, and toggle loop / reverse playback.
4Optionally add caption text and a sticker overlay for meme-style edits.
5Preview your selection, then click "Generate GIF" to start background encoding.
6Download the resulting GIF and use it anywhereï¿½everything stays private.

Pro Tips:

Upload your source video and set the start/end time for the clip you want to turn into a GIF.
Choose a frame rate (8-30 FPS) - higher FPS looks smoother but increases file size and encode time.
Scale the resolution with a percentage or enter custom width/height; lock the aspect ratio to avoid stretching.
Add caption text and/or a sticker overlay to create meme-style GIFs with personalized flair.
Click "Generate GIF" - encoding runs in a Web Worker so the page stays responsive while you wait.

Common Use Cases

Educational Tutorials

Clip long screen recordings into short, looping GIFs that illustrate a single concept without requiring a full video player.

Example:

Social Media Memes

Turn reaction clips into shareable memes with captions and stickers, optimized for Twitter, Reddit, and Discord.

Example:

Product Previews

Create silent looping product GIFs for e-commerce that autoplay on any site without a play button.

Example:

UI Feedback Loops

Capture micro-interactions and UI animations as lightweight looping GIFs for design presentations.

Example:

Email Newsletters

Embed animated GIFs in email campaigns that work everywhere because GIF has 100% email client support.

Example:

Data Viz Loops

Convert chart animations into compact looping GIFs for reports and slides where embedded videos would be too large.

Example:

Frequently Asked Questions

Technical Details

How the Core Mechanic Works

The conversion pipeline decodes your video on the main thread, extracts frames with the Canvas 2D API, then hands them to gif.js for color quantization and LZW compression inside a dedicated Web Worker.

Browser File → ObjectURL → <video>

→ loadedmetadata: duration + videoWidth/Height captured

→ for each output frame:

seek(video, t) → drawImage(canvas, frame) → addFrame(canvas)

→ gif.js render() → GIF Blob URL → download

Quality & Performance

Frame Rate

Lower FPS cuts file size linearly. 10-15 fps is the sweet spot for most clips; 30 fps for smooth motion.

Palette

gif.js defaults to 256 colors. Palette optimization uses a median-cut algorithm to shrink the color map with minimal visual loss.

Resolution

Each dimension is rounded to an even number. Halving each axis roughly quarters the pixel count and file size.

Encoding

Runs in a Web Worker so the page never locks up. Memory grows with frame count and dimensions.

Browser Compatibility

✓ Fully Supported

Chrome 90+, Firefox 88+, Edge 90+, Safari 14+. Requires HTML5 video, Canvas 2D, createImageBitmap, and Web Workers.

⚠ Partial Support

Older Safari (13-) and some mobile browser video elements may stall on seeking for very short clips.

✗ Not Supported

MP4 (H.264) inside GIF is not supported and WebM inside GIF is not supported. Use the WebM input for best cross-browser results.

Privacy & Security Architecture

Zero Server

No file ever leaves your device. All processing is in-browser JavaScript; the page makes no network requests for your data.

In-Memory Only

Blob URLs and canvases live in page memory. The cleanup() handler revokes all Object URLs and pauses the video on unmount.

Open Source Engine

Encoding is done by gif.js (jnordberg), audited and MIT-licensed. No opaque binaries handle your pixels.

No Tracking

No analytics, no cookies, no referrer leakage. The privacy badge is honest because nothing is collected.

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Private Video GIF Maker

Upload Video

GIF Options

Reverse

Normal

High Color

Standard

Web Worker

Main Thread

GIF

MP4

Social Media Preset

Caption Overlay

Outline

No Outline

How GIF Conversion Works

Simple Steps:

Pro Tips:

Common Use Cases

Educational Tutorials

Social Media Memes

Product Previews

UI Feedback Loops

Email Newsletters

Data Viz Loops

❓ Frequently Asked Questions

Technical Details

How the Core Mechanic Works

Quality & Performance

Frame Rate

Palette

Resolution

Encoding

Browser Compatibility

✓ Fully Supported

⚠ Partial Support

✗ Not Supported

Privacy & Security Architecture

Zero Server

In-Memory Only

Open Source Engine

No Tracking

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Was this tool helpful?

Private Video
GIF Maker

Frequently Asked Questions