Gifio

What Is Gifio?

Gifio is a free GIF maker that runs entirely in your browser. Drop in images, style them, tune the timing, download your GIF. Your images never leave your device. There’s no server, no uploads, no account, no tracking. It’s one HTML file with zero dependencies.

Key Features

• Style presetsThirteen one-click looks: Film Noir, Sepia, Cyanotype, Golden Hour, Rainbow Glasses, Sunset Drift, and more. One tap to transform every frame. Fine controls hidden behind “Customize” for people who want them.
• Background elementsSunrise, Moonrise, Rain, Snow, Fireflies, Aurora, Hearts, and more. Procedural animations that layer behind or over your frames.
• Smart timingGifio analyzes visual differences between your frames and varies the speed automatically. Moments with big changes get more time; similar frames move quickly. The rhythm matches your content.
• Title cardsAdd a styled title card with optional face detection. Gifio finds the main subject in your photos and renders a stylized circular portrait on the card.
• Aspect ratio cropSquare, 4:3, 16:9, Portrait, 3:2. Center-crop keeps your content centered.
• Smooth loopCross-fades the end into the beginning for seamless cycling.

Why It Exists

Every other GIF maker either uploads your images to a server, wraps them in ads, limits output quality, or requires an account. Gifio does none of those things. It’s a single HTML file with a custom GIF89a encoder written from scratch: median cut quantization, Floyd-Steinberg dithering, LZW compression, per-frame timing. The AI features (face detection, smart timing, content analysis) run in the browser using native APIs. Nothing leaves your device.

We built it because a tool this simple shouldn’t require giving your photos to a stranger.

Pricing

Free. No tiers, no limits, no account. Download the HTML file and it works offline forever.

Status

Live. Available now at dabirdwell.github.io/gifio. Source on GitHub: MIT license.

Built by Humanity and AI LLC: tools for the AI transition.