Browser extensions
Popups, side panels and content scripts that work across Chrome, Edge and Firefox.
Manifest V3 · Web Store listing
Extension & add-on studio
Small add-ons that make big software do more.
We design and build Chrome extensions, Google Workspace add‑ons, Shopify apps, Figma plugins and small apps, from first sketch to store approval.
- Chrome
- Edge
- Firefox
- Google Workspace
- Shopify
- Figma
- VS Code
- Slack
What we build
If your team lives in it, we can build for it.
Every product we ship lives inside someone else's software, so it has to feel native there. Here's where we work.
Google Workspace add-ons
Sidebars and automations for Sheets, Docs, Gmail and Drive, built on Apps Script or your own backend.
Apps Script · Marketplace · OAuth review
Shopify apps
Admin extensions, theme app blocks and embedded apps for merchants, public or private.
Polaris · App Bridge · App Review
Figma plugins
Plugins and widgets that take the repetitive work out of design, and generate real content.
Plugin API · Community publishing
Editor extensions
VS Code extensions: commands, panels, language features and AI-assisted tooling.
Extension API · Marketplace
Small apps
Focused web apps and internal tools, the ones that are too small for a big agency and too important to leave in a spreadsheet.
Next.js · Postgres · Auth
Why a specialist
The code is the easy part. The platform is the hard part.
Most extension projects don't stall on features. They stall on review queues, permission warnings and platform changes. That's the work we're built around.
- Store review
- Chrome Web Store, Shopify App Review, the Workspace Marketplace: each has its own rules. We write the listing, the justifications and the screenshots, and we handle reviewer feedback.
- Permissions & privacy
- Least-privilege by default. Fewer scopes means faster Google OAuth verification, fewer scary install prompts and more installs.
- Platform shifts
- Manifest V3 migrations, deprecated APIs, host UI redesigns. We build so the next platform change is an update, not a rewrite.
- After launch
- Hosts ship changes without asking. We monitor, patch and release updates so your users never notice.
Process
From idea to installed, in four steps.
- 01
Scope
A short call to pin down the smallest version worth shipping, which host it lives in and what it needs access to.
- 02
Prototype
A working prototype inside the real host app, not a slide. You install it and try it on your own data.
- 03
Build
Regular builds you can install yourself, with a clear list of what changed. No surprises at the end.
- 04
Launch & upkeep
Store submission, listing copy and review handled, then ongoing updates as the platform moves.
xtended showcase
We also run a launchpad for new extensions.
The showcase is a community leaderboard where makers launch extensions and add-ons across every platform, ranked daily by upvotes. It keeps us close to what people are building.
Explore the showcase →Today's top launchescommunity-submitted
What can you build?
Browser extensions for Chrome, Edge and Firefox; Google Workspace add-ons; Shopify apps; Figma plugins; VS Code extensions; and small standalone web apps or internal tools.
How is pricing handled?
After a short scoping call you get a written, fixed-scope quote. The smaller the first version, the faster and cheaper it ships, so we'll always suggest where to start.
Who owns the code and the store listing?
You do. We publish under your developer account wherever the platform allows, and hand over the source repository, credentials and documentation.
Can you take over or fix an existing extension?
Yes. We regularly audit existing extensions and add-ons, especially ones that need a Manifest V3 migration, a permissions clean-up or help getting through review.
What happens after launch?
Host platforms change often. We offer ongoing maintenance: monitoring, compatibility fixes, store policy updates and new features.
Got a tool your team wishes existed?
Tell us what you'd build if the host app let you. We'll reply with how we'd approach it.
Start a project