WebCap is an extremely lightweight web screenshot tool. It doesn't require Selenium, Playwright, Puppeteer, or any other browser automation framework; all it needs is a working Chrome installation. Used by BBOT.
pipx install webcapwebcap.mp4
WebCap's most unique feature is its ability to capture not only the fully-rendered DOM, but also every snippet of parsed Javascript (regardless of inline or external), and the full content of every HTTP request + response (including Javascript API calls etc.). For convenience, it can output directly to JSON.
# Capture screenshots of all URLs in urls.txt
webcap scan urls.txt -o ./my_screenshots
# Output to JSON, and include the fully-rendered DOM
webcap scan urls.txt --json --dom | jq
# Capture requests and responses
webcap scan urls.txt --json --requests --responses | jq
# Capture javascript
webcap scan urls.txt --json --javascript | jq
# Extract text from screenshots
webcap scan urls.txt --json --ocr | jq# Start the server
webcap server
# Browse to http://localhost:8000
- Blazing fast screenshots
- Fullscreen capture (entire scrollable page)
- JSON output
- Full DOM extraction
- Javascript extraction (inline + external)
- Javascript extraction (environment dump)
- Full network logs (incl. request/response bodies)
- Title
- Status code
- Fuzzy (perception) hashing
- Technology detection
- OCR text extraction
- Web interface
import base64
from webcap import Browser
async def main():
# create a browser instance
browser = Browser()
# start the browser
await browser.start()
# take a screenshot
webscreenshot = await browser.screenshot("http://example.com")
# save the screenshot to a file
with open("screenshot.png", "wb") as f:
f.write(webscreenshot.blob)
# stop the browser
await browser.stop()
if __name__ == "__main__":
import asyncio
asyncio.run(main()) Usage: webcap scan [OPTIONS] URLS
Screenshot URLs
╭─ Arguments ────────────────────────────────────────────────────────────────────────────────╮
│ * urls TEXT URL(s) to capture, or file(s) containing URLs [default: None] │
│ [required] │
╰────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Options ──────────────────────────────────────────────────────────────────────────────────╮
│ --json -j Output JSON │
│ --chrome -c TEXT Path to Chrome executable [default: None] │
│ --output -o OUTPUT_DIR Output directory │
│ [default: /home/bls/Downloads/code/webcap/screenshots] │
│ --help Show this message and exit. │
╰────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Screenshots ──────────────────────────────────────────────────────────────────────────────╮
│ --resolution -r RESOLUTION Resolution to capture [default: 1440x900] │
│ --full-page -f Capture the full page (larger resolution images) │
│ --no-screenshots Only visit the sites; don't capture screenshots │
│ (useful with -j/--json) │
╰────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ Performance ──────────────────────────────────────────────────────────────────────────────╮
│ --threads -t INTEGER Number of threads to use [default: 15] │
│ --timeout -T INTEGER Timeout before giving up on a web request [default: 10] │
│ --delay SECONDS Delay before capturing [default: 3.0] │
╰────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ HTTP ─────────────────────────────────────────────────────────────────────────────────────╮
│ --user-agent -U TEXT User agent to use │
│ [default: Mozilla/5.0 (Windows NT 10.0; Win64; x64) │
│ AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 │
│ Safari/537.36] │
│ --headers -H TEXT Additional headers to send in format: 'Header-Name: │
│ Header-Value' (multiple supported) │
│ --proxy -p TEXT HTTP proxy to use [default: None] │
╰────────────────────────────────────────────────────────────────────────────────────────────╯
╭─ JSON (Only apply when -j/--json is used) ─────────────────────────────────────────────────╮
│ --base64 -b Output each screenshot as base64 │
│ --dom -d Capture the fully-rendered DOM │
│ --responses -rs Capture the full body of each HTTP response │
│ (including API calls etc.) │
│ --requests -rq Capture the full body of each HTTP request │
│ (including API calls etc.) │
│ --javascript -J Capture every snippet of Javascript (inline + │
│ external) │
│ --ignore-types TEXT Ignore these filetypes │
│ [default: Image, Media, Font, Stylesheet] │
│ --ocr --no-ocr Extract text from screenshots [default: no-ocr] │
╰────────────────────────────────────────────────────────────────────────────────────────────╯