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Open-source tools & agent skills to build the things you’re paying for.

URL to PNG

Project255

Self-host an HTTP service that renders URLs as cached PNG screenshots.

Added 2026-10-07
Replaces
GitHub

What you can build

  • Build a tool that takes a list of URLs and produces an HTML catalog with a rendered PNG preview for each entry.
  • Code a batch processor that turns a set of URLs into individual screenshots and lays them out as one review image.
  • Build a review report that requests screenshots with different documented rendering options and groups each URL’s results for inspection.
  • Write a Markdown processor that finds selected URLs, requests PNGs, and emits image markup alongside the original link text.
  • Build a utility that accepts URLs from a support case and packages their rendered PNGs with a plain-text URL index.

Try this prompt

Build a small end-to-end link-preview generator using URL to PNG. Accept a CSV of URLs, request a PNG for each using the documented HTTP query-parameter API, and create an HTML page showing each image with its source URL. Preserve the input CSV and report failed requests without discarding successful results. Keep dimensions configurable and document required service settings; do not claim URL to PNG provides the page-generation or batch-processing code.

Get started

  1. Choose a setup path

    Use the Docker instructions in the README, or follow its Local Serve section, which documents pnpm setup and installing Playwright Chromium.

  2. Check the API and options

    The README shows HTTP requests using URL and width query parameters. Consult its linked getting-started and configuration documentation for further setup and configuration details.

  3. Select storage and monitoring

    Review the linked configuration, encryption, and metrics documentation to determine whether filesystem, AWS S3, CouchDB, or the Prometheus metrics endpoint fits your deployment.

License & notes

MITThe repository is MIT-licensed; retain its copyright and license notice when redistributing copies. Self-hosting requires compute and Chromium via Playwright; storage costs may apply when using S3 or CouchDB. No dollar amounts, hosted service, or model costs are specified in the supplied evidence.

  • You must host the service and provide its runtime and Playwright Chromium; the repository does not supply a hosted service in the provided evidence.
  • Batch processing, contact sheets, Markdown transformation, and visual-diff reports are reader-built adaptations, not documented built-in features.
  • Storage options include filesystem, AWS S3, and CouchDB; external storage and hosting may incur costs not specified in the supplied sources.
  • The supplied evidence does not establish authentication, performance guarantees, or support terms; assess deployment requirements against the linked documentation.

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Added 2026-10-07
Works with
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GitHub

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code-review

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Reviews code changes against both repository standards and the originating task specification, using parallel focused review passes.

Added 2026-10-07
Works with
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accessibility

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azure-pipelines

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Works with
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Format
SKILL.md
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