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Previewhost
Local previews for full-stack apps
Start your frontend, API, and databases on your machine. Separate ports and managed data for each environment. Use the CLI or connect your coding agent over MCP.
Hi everyone! I built Previewhost because running and testing multiple worktrees was still too manual.
You can ask your coding agent to start a preview over MCP. It can prepare the configuration, start your frontend, backend, databases, Redis, and setup jobs, then give you a human-readable local URL. Multiple worktrees or repositories can run at the same time, with each preview isolated, and you can monitor logs from the different services in one place.
You can also write a preview.yaml yourself or paste a config into the dashboard. The setup can then be reused for future previews. Previewhost handles dependencies and readiness checks, while secrets stay in config as references, not in the agent chat.
It runs locally, is open source, and works through the dashboard, CLI, MCP, or Node library.
If you run into similar problems, I’d like to hear how you handle them and what you’d want Previewhost to support next.
About Previewhost on Product Hunt
“Local previews for full-stack apps”
Previewhost was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #139 on the daily leaderboard. Start your frontend, API, and databases on your machine. Separate ports and managed data for each environment. Use the CLI or connect your coding agent over MCP.
On the analytics side, Previewhost competes within Open Source, Software Engineering, Developer Tools and GitHub — topics that collectively have 673.8k followers on Product Hunt. The dashboard above tracks how Previewhost performed against the three products that launched closest to it on the same day.
Who hunted Previewhost?
Previewhost was hunted by Rojhat Toptamus. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Previewhost including community comment highlights and product details, visit the product overview.
Rojhat Toptamus