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Users & developer featuresWebsite crawling capabilitiesAdvanced data harvesting capabilitiesArchive management features
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Name
(link to home page)		NameWebsiteOpen source?Source
repo		PlatformPricingPrimary dev. languageCLIGUIWUILibrary APINetwork APIExtensibility frameworkDiffingExtractionUses Machine LearningNotable users Notes and commentsEvaluation date
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ChangeDetectChangeDetecthttp://www.changedetect.com/✖︎-Web: Self-Hosted-✖︎
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changed onlinechanged onlinehttps://changed.online✖︎-Webfree tier
or paid		JS (Vue)
/ HTML		✖︎✖︎✔✖︎✔✖︎✔✔RSS/Atom parsingfree tier: any number of pages, but checks need to finish in 1 minute
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ChangeTowerChangeTowerhttps://changetower.com/✖︎Web-✖︎
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DiffbotDiffbothttps://www.diffbot.com/✖︎-Web
https://www.diffbot.com/pricing/
-✔✖︎✔
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DistillDistillhttps://distill.io/-Web-½
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Follow That Page
Follow That Page
https://www.followthatpage.com/✖︎-Web-
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OnWebChangeOnWebChangehttps://onwebchange.com/✖︎-Web-
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PageFreezerPageFreezerhttps://www.pagefreezer.com/✖︎-Web-✔
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TheWebWatcher
TheWebWatcher
http://www.thewebwatcher.com/✖︎-Web-
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Time MachineTime Machinehttp://timemachine.truthmeter.mk/#✔BitbucketWebPHP
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TracklyTracklyhttps://trackly.io/✖︎-Web-
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VersionistaVersionistahttps://versionista.com/✖︎Web
https://hackmd.io/s/Sy_RFC6z-#
-✖︎
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VisualPingVisualPinghttps://visualping.io/✖︎-Web-
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WacheteWachetehttps://www.wachete.com/✖︎-Web-✔
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WatchThatPage
WatchThatPage
http://www.watchthatpage.com/✖︎-Web-
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DiffEngineDiffEngineMITGitHubWeb: Self-HostedFreePython✔✔
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EDGI Web MonitoringEDGI Web Monitoringhttps://github.com/edgi-govdata-archiving/web-monitoring~GitHubWeb: Self-HostedFreeRails/Python/NodeJS✔
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HuginnHuginnMITGitHubWeb: Self-HostedFreeRuby / Coffeescript½Very lightweight "on_change" handler for "website agents".
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KlaxonKlaxonhttps://www.newsklaxon.org/MITGitHubWeb: Self-HostedFreeRuby✔
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NewsDiffsNewsDiffshttp://newsdiffs.org/MITGitHubWeb: Self-HostedFreePython✔
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NYTdiffNYTdiffhttps://twitter.com/nyt_diffNoneGitHubWeb: Self-HostedFreePython✔
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PagelyzerPagelyzerhttp://pagelyzer.openpreservation.org/Apache+GitHubWeb: Self-HostedFreeJava✔✔Open Preservation Foundation
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SiteSeerSiteSeer Bothttp://t.me/siteseer_botMITGitHubWeb: Self-HostedFreeNodeJS✔✔
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