A clearer view of
the extension ecosystem.
Field notes, practical guides, and data from both registries. Built for the people who publish.
How many VS Code extensions are there? The September 2026 catalogs
A 6 September 2026 snapshot counted 115,150 Marketplace listings and 17,429 on Open VSX. See the overlap, method, and limits.
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Publisher guide ·
How to choose VS Code extension keywords: a worksheet with real rank data
Choose VS Code extension keywords with a five-step worksheet: relevance, how contested a phrase is, near-top-10 positions, competitor overlap and placement.
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Publisher guide ·
How to compare your VS Code extension's growth with competitors
Compare VS Code extension installs fairly: pick real peers, match dates, use window gains and percentages, handle decreases and gaps, and keep registries apart.
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Publisher guide ·
Publish a VS Code extension to the Marketplace and Open VSX from one pipeline
A GitHub Actions workflow that builds one VSIX and publishes it to the Marketplace and Open VSX, with re-runs, pre-releases, targets and checks.
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Publisher guide ·
What changed before a competitor overtook your VS Code extension?
A dated method for a Marketplace rank drop: rule out jitter, check how many queries moved, list both listings' edits, and log what happened in the window.
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Publisher guide ·
What does the VS Code Marketplace install count actually mean?
What the VS Code Marketplace install count includes, why updates are excluded, why it can fall, and what 1.9 million daily readings show about decreases.
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Publisher guide ·
Why your VS Code extension isn't showing up in search
Why a VS Code extension is not showing in search: check listing status, editor and registry, rank depth and timing, with dated data from both registries.
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Publisher guide ·
How to publish a VS Code extension to Open VSX
Publish a VS Code extension to Open VSX with the right account, namespace, token and VSIX, plus practical fixes for common errors.
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Publisher guide ·
Track VS Code extension installs and search positions without an ownership check
Track a VS Code extension without proving ownership. Set fair competitor comparisons, interpret public counters, and investigate changes with matched dates.
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Publisher guide ·
VS Code Marketplace search ranking: measuring jitter and real movement
Learn how VS Code Marketplace search ranking varies between identical searches, how to filter jitter, and which listing fields to review.
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Publisher guide ·
What a VS Code verified publisher badge means, compared with Open VSX
Learn what publisher verification checks on the VS Code Marketplace and Open VSX, how to apply, and what neither registry badge proves.
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Publisher guide ·
Why a VS Code extension rank tracker needs a 1,000-position window
A VS Code extension rank tracker needs a defined search window. Learn what positions 1–1,000 reveal and how to interpret every missing state.
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Publisher guide ·
Why the Open VSX download count looks inflated
Open VSX download count measures package downloads, not unique people. Learn what it can show, what it cannot, and how to compare registry trends.
Read storyData report ·
How many VS Code extensions are there? The September 2026 catalogs
A 6 September 2026 snapshot counted 115,150 Marketplace listings and 17,429 on Open VSX. See the overlap, method, and limits.
Read story