Big software.
Tiny tab.
Tools that respect your time.
We build software the way we wish more software was built — fast, private, and out of your way.
Faster than installing anything
Open the page, use the tool, close the tab. No downloads, no setup wizards, no system permissions to approve.
Private by design
Your documents and data stay on your device. WebAssembly lets us run real software without sending anything to a server.
No accounts required
Skip the signup forms. Skip the email verification. Skip the upsell popups. Just open and start using.
Built to last, updated weekly
These aren’t side projects. We ship updates almost every week and stand behind every tool with active support.
Browser-native tools. Free to start.
Browser extensions, full WebAssembly apps, web tools. Every one runs on your machine — and we’re still building more.
Anything Copilot
Chat with AI, translate pages, multitask between tabs — all without leaving what you’re doing.
Blitz Capture
Capture an entire scrolling page — even 10+ screens long — pixel-perfect, in less than a second.
ZIZIYI Office
A real office suite running on your machine. No Microsoft account, no upload, no install.
Online MCP Inspector
A browser-based inspector for MCP servers. Debug, test, and explore MCP protocols without any install.
People who use these stick around.
“This is simply amazing. I did not expect this to work as well as it did so consider me throughly surprised; It adds another layer of convienience for me that just can't be measured. This is all around and it doesn't dilute anything by limiting you to one AI companion. You have several options so you can choose your favorite or anything else. I can't get over how well this is so yea...5 stars with EASE, I congratulate the people who developed this hats off to you my friend.”
“很好,就是我想要的功能,谢谢作者!”
“Hi, could you please add an option to include custom CSS and JS for the webpages we visit in the sidebar? The other custom CSS and JS extensions for Chrome don’t work inside this extension; they only function on the webpages we normally visit in Chrome. Additionally, could you please add back and forward buttons at the top, similar to those we use in Chrome? I would really appreciate these features. I really like this extension; it’s very good! Thank you very much for considering my suggest... Show more”
“好用！之前在Chrome上装了好几个侧边栏扩展试图让Chrome有类似Edge那样的侧边栏和分屏浏览功能，这个是目前用下来最好用的一个。 有个问题就是浏览推特或者是pinterest这种下拉浏览新内容的网站会在切到另外一个页面再回来后自动回退到最顶部，希望后续能够改善一下。”
“Simply awesome! Loved it using. But I hope u would think of adding navigation features like leaving a website which i open in the sidebar. The navigation only works for the main page.”
“Couldn't find any paid windows, it's really great, hats off to you! Everything is close to perfect so far, continued optimization would be great!”
A small team that loves browsers.
ZIZIYI started as a side project — one extension, one stubborn belief that browser-native software was an underrated path. Three years later it’s four products used by twenty thousand people, and the same conviction.
We’re independent, self-funded, and small on purpose. No trackers, no ads, no upsells. We charge a fair price for the Pro features so we can keep building things we’re proud of, full-time.
Ready to make your
browser have fun?
Pick a tool, open a tab, and go. The free version covers most of what most people need. Upgrade whenever you’re ready.