If you've worked with Lottie animations, you know the pain: you download a .json file, drop it into your project, and it looks completely different from what you expected. Colors are off, timing is wrong, and you have no way to test it before shipping.
These free tools solve that — no signup, no watermarks, no paywall.
What is a Lottie Animation?
Lottie is a JSON-based animation format created by Airbnb. It renders After Effects animations natively on the web, iOS, and Android. The files are tiny, resolution-independent, and interactive — which is why every major app uses them for micro-animations and onboarding flows.
The format has exploded in popularity, but the tooling has historically been locked behind paid subscriptions or clunky desktop software.
That's changing.
The Best Free Lottie Tools (2025)
1. IconKing Lottie Preview Tool
URL: https://iconking.net/preview
Free tier: Fully free, no account required
The fastest way to preview a Lottie animation before using it. Just drag and drop your .json or .lottie file and it plays instantly in the browser. You can share a link directly with clients — they don't need any software or accounts.
Why it's great:
- Supports
.json,.lottie, and.svgformats - Instant preview with no upload delays
- Shareable links for client review
- Also works as a collaboration tool — leave comments and iterate without opening After Effects
Best for: quickly testing downloaded animations, sharing previews with non-technical stakeholders.
2. IconKing Lottie Editor
URL: https://iconking.net/editor
Free tier: Available without signup
The online Lottie editor lets you tweak animations visually — change colors, adjust playback speed, retime keyframes — without touching After Effects or any JSON by hand.
For most use cases (swapping brand colors, adjusting timing), this completely replaces the need to open the original AEP file.
3. IconKing Lottie to GIF Converter
URL: https://iconking.net/tools/lottie-to-gif
Free tier: Up to 480px, 15fps, no signup
This is the tool I use most. You drop in a Lottie JSON and get back an animated GIF — compatible with emails, Slack, social media, and every platform that doesn't support Lottie natively.
Powered by gifski for high color fidelity. Files are deleted from servers within 1 hour.
Other conversion tools on the same platform:
- Lottie → MP4 — for social posts and presentations
- Lottie → SVG — export individual frames as vector
- Lottie → WebM — for Chrome/Firefox with alpha transparency
- Lottie → WebP — modern image format, great compression
- Lottie → APNG — animated PNG with full alpha channel
- SVG → Lottie — convert static SVGs to animated Lottie
That's 7 converters, all free, all in one place, none requiring signup.
4. LottieFiles (Free Tier)
URL: https://lottiefiles.com
Free tier: Limited — requires account, watermarks on some exports
The biggest Lottie library, but the free tier has gotten progressively more restricted over the years. Good for finding animations; not ideal for production tooling without a paid plan.
5. dotLottie Player
URL: https://dotlottie.io
Free tier: Open source player component
If you're building a web app, the dotLottie player is the lightest-weight way to embed animations. It's a custom element — just drop in a <dotlottie-player> tag.
Which Tool Should You Use?
| Need | Best Tool |
|---|---|
| Preview before using | IconKing Preview |
| Change colors/timing | IconKing Editor |
| Export to GIF for email | Lottie to GIF |
| Export for social video | Lottie to MP4 |
| Embed on web | dotLottie Player |
| Browse free animations | IconKing library |
Where to Get Free Lottie Animations
Once you have the tools, you need the animations. The best sources for free, high-quality Lottie files:
IconKing Free Library — 500+ free animations including loaders, UI icons, flags, confetti, business illustrations, and 404 pages. All properly categorized and immediately downloadable.
LottieFiles Community — Large library but variable quality. Check license terms carefully.
Lordicon — High-quality animated icons, limited free tier.
Final Thoughts
The Lottie ecosystem is maturing fast. A year ago, you needed After Effects to do anything useful. Now you can preview, edit, convert, and ship Lottie animations entirely in the browser for free.
IconKing covers the full workflow — from preview to production export — without requiring an account for any of the core tools. That's rare, and worth bookmarking.
Have a Lottie tool I missed? Drop it in the comments.