html-snapshot 0.1.2

Capture a PNG screenshot of a local HTML presentation using Playwright

html-snapshot

Capture any HTML page as a PNG and (optionally) emit a structured layout report for automated checks.

Quick start (no install)

# one-time: ensure Playwright's Chromium runtime is available
uvx playwright install chromium

# generate a slide screenshot, plus an optional JSON layout report
uvx html-snapshot /path/to/slide.html \
    --output slide.png \
    --report slide.json

uvx runs the tool in an isolated environment downloaded from PyPI. The script auto-installs Chromium if it is missing (skip with --no-auto-install).

Install once, reuse often

Prefer a persistent CLI?

uv tool install html-snapshot   # adds `html-snapshot` to your PATH

html-snapshot /path/to/slide.html --output slide.png --report slide.json

Or use pip:

pip install html-snapshot
html-snapshot /path/to/slide.html --output slide.png

CLI options

Option	Description
html_path	Path to the local HTML file to render
-o / --output	Output PNG path (default: input with .png suffix)
--report	Optional JSON layout report (words, bounding boxes, warnings)
--width / --height	Viewport size (default: 1400×900)
--delay	Wait time after load before capture
--no-full-page	Capture only the viewport
--no-auto-install	Require Chromium to be pre-installed

Direct-from-GitHub fallback

If you’d rather run the latest commit without PyPI:

uvx --from git+https://github.com/oneryalcin/html-snapshot html-snapshot sample.html --output slide.png