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Sliver review

Free#13 of 15 in Internet Archiving Software

A focused, open-source workflow for manual browser captures and WARC collections.

6.9/10Editor score
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Sliver6.9 Visit Sliver

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Sliver is an open-source command-line tool for building small archival collections from live pages or existing web archives. It suits developers who want a local, manual workflow centered on supplied URL lists rather than a hosted service or large-scale crawler. The workflow uses shot-scraper for browser screenshots and routes browser requests through a pywb web proxy to create archival records. It can also retrieve records from supported archives at a specified timestamp.

Its output and collection model are the main strengths. Sliver stores fetched materials and screenshots in local collection folders, and produces WARC records with response metadata and provenance information. The documented ecosystem includes shot-scraper, pywb, ReplayWeb.page and Internet Archive. That makes it relevant to developers assembling an archive workflow from specialized tools; it is not positioned as an automated crawling system. Captures are manual, and the category specifications indicate no API access or scheduled crawls.

Sliver is free and open source, with self-hosted deployment and documentation as its listed support channel. Setup requires Python and a Chromium browser. WARC is the native archival export described, while WACZ packaging is not implemented in Sliver itself: the documented workaround relies on a separate wacz utility. Choose Sliver when a small, locally managed collection and explicit capture provenance matter more than automation. Teams seeking scheduled, large-scale crawling or built-in WACZ packaging should look for a different fit.

Sliver pros and cons

  • Where it wins
    • Captures browser screenshots and archival records from supplied URL lists
    • Can retrieve archived records at a specified timestamp
    • Stores local collection materials with WARC response metadata and provenance
  • Where it doesn't
    • Manual captures do not support scheduled crawls
    • WACZ packaging requires a separate utility
    • Setup requires Python and a Chromium browser

Sliver fact sheet, pricing and score →

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