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@@ -139,7 +139,9 @@ This list of tools and software is intended to briefly describe some of the most
 * [The Unarchiver](http://unarchiver.c3.cx/unarchiver) - Program to extract the contents of many archive formats, inclusive of WARC, to a file system. Free variant of The Archive Browser (macOS only, Proprietary app).
 * [tikalinkextract](https://github.com/httpreserve/tikalinkextract) - Extract hyperlinks as a seed for web archiving from folders of document types that can be parsed by Apache Tika (Golang, Apache Tika Server). *(In Development)*
 * [wasapi-downloader](https://github.com/sul-dlss/wasapi-downloader) - Java command line application to download crawls from WASAPI. *(Stable)*
+* [Warchaeology](https://nlnwa.github.io/warchaeology/) - Warchaeology is a collection of tools for inspecting, manipulating, deduplicating and validating WARC-files. *Stable*
 * [WarcPartitioner](https://github.com/helgeho/WarcPartitioner) - Partition (W)ARC Files by MIME Type and Year. *(Stable)*
+* [warcrefs](https://github.com/arcalex/warcrefs) - Web archive deduplication tools. *Stable*
 * [webarchive-indexing](https://github.com/ikreymer/webarchive-indexing) - Tools for bulk indexing of WARC/ARC files on Hadoop, EMR or local file system.
 * [wikiteam](https://github.com/WikiTeam/wikiteam) - Tools for downloading and preserving wikis. *(Stable)*