About Eise.app
Image stacker for planets, Moon & Sun
Eise.app is a (the first!) browser-based planetary image stacking tool for astrophotography, mainly lucky imaging. All algorithms run in your browser, and nothing is uploaded.
The name is an ode to Eise Eisinga, a Frisian amateur astronomer who built a planetarium in his living room. The project started from frustrations getting existing software running on ARM-based Macs - AutoStakkert4! didn't work in Wine, PSS had dependency issues, Lynkeos crashed continuously.
The stacking pipeline includes automatic frame ranking, per-frame cropping and centering, local alignment with de-warping, drizzle upscaling, and quality-weighted frame accumulation. The integrated post-processor offers wavelet sharpening, RGB alignment, and color correction. Together with Continuous Stacking and a built-in post processor it has become more easy to find the best optimal stack percentage. Tips on using Eise.app, compare it to other stacking software.
You can also use the post-processor directly on any image.
Curious what people are making with Eise? Browse the community gallery. I would love to see yourt stacks, so please show them!
What users say
"Very good app — it helped me massively improve my image of the Moon."
— Santhiago, astrophotographer from Costa Rica
"Very satisfied with the result."
— Alexis, astrophotographer from France
"Happy this is easy to use."
— Astroyouda, astrophotographer from Indonesia
Quotes translated to English, collected via the feedback form.
Technology
Built with Nuxt/Vue, using MediaBunny, ffmpeg.js and webGPU.
Browser Requirements
Eise.app uses WebGPU for fast GPU-accelerated processing. See browser requirements for minimum versions.
Alternative software
Eise.app works well for quick astrophotography results without installing anything. For a detailed comparison with AutoStakkert!, Planetary System Stacker, Registax, and other tools, see the stacking software comparison.
I also made some other comparisons (mainly to boost Eise's SEO position): AutoStakkert! vs Eise.app, Registax 6 vs Eise.app, PSS vs Eise.app.
Acknowledgments
This project draws inspiration from Planetary System Stacker by Rolf Hempel. Thank you Rolf for making PSS open source and documenting the algorithms.
Community & feedback
Show me what you stacked
If you've made something with Eise.app I'd like to see it if possible! Here are some suggestions:
- Upload your stack to the Eise gallery
- Post on r/astrophotography and mention Eise.app in the workflow - I keep an eye out.
- Post to Instagram or X with #eiseapp.
- Or send it via the feedback button.
Eise's Community gallery
The community gallery shows stacks published from the app by other astrophotographers. You can publish yours from the post processor, or upload an Eise stack you've already saved.
Bugs and feature requests
For any bug or feature request, please tell me - especially the niche stuff! Providing me with your data also helps me a lot.
Support the project
Eise.app is free and I build it in my spare time. If it saved you an evening of wrestling with Wine or a legacy install, you can buy me a coffee to keep the project going.
Happy stacking,
Tijmen