Apps delivered as browser or IDE extensions, or as plugins, installed into a host runtime.
8 marketplaces in this directory match this tag.
Extensions cover any app delivered as a plugin installed into a host runtime — browser extensions (Opera, Raycast, Safari), IDE/editor plugins (Visual Studio Marketplace, JetBrains Marketplace), and platform-specific add-ons (PrestaShop, Odoo, Airtable). The common thread is that the extension runs inside an existing tool rather than as a standalone product.
Auth and review vary widely by host: IDE marketplaces often use personal access tokens with light or no pre-publish review (Visual Studio Marketplace ships with none at all), while ecommerce and CRM extension stores (PrestaShop, Odoo) require API-key auth and a formal validation pass. Check the specific host’s rules — this tag spans very different review models.
Formagrid, Inc. (Airtable)
React-based embedded extensions that add visualizations, tools, and integrations inside Airtable bases, published through a reviewed CLI submission.
JetBrains s.r.o.
JetBrains' official plugin marketplace for its IDE family, with built-in paid sales and a 15% commission as merchant of record.
Odoo S.A.
Large module marketplace for the open-source Odoo ERP/CRM suite, publishing free and paid apps, themes, and connectors per Odoo version.
Opera Norway AS
Opera's official catalog for Chromium-based WebExtensions, free to publish but subject to slow human moderation.
PrestaShop SA
The official marketplace for the self-hosted open-source PrestaShop platform, selling PHP modules and themes that install directly into merchants' stores.
Raycast Technologies Ltd.
Open-source extension store for the Raycast launcher, published via GitHub PR review, free and MIT-licensed, with AI-agent tool support.
Apple Inc.
Safari's browser extensions, distributed only as App Store apps under Apple Developer Program terms and full App Review.
Microsoft Corporation
Microsoft's official marketplace for VS Code extensions, published via the vsce CLI with no built-in paid model.