Paperpile alternatives: 3 open-source picks
These 3 Paperpile alternatives replace it for $0, led by Zotero, Karakeep and Wallabag. All 3 are open source. License, stars and last commit checked by hand on 2026-08-29. No trials, no crippled tiers.
The reference manager everyone keeps recommending because it actually earns it.
Save-everything bookmark and read-later app (ex-Hoarder): links, notes, images, PDFs with AI auto-tagging and full-text search.
licenseAGPL-3.0
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
Read-it-later app that extracts and stores article content for distraction-free reading.
licenseMIT
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
What each one is, in full: Karakeep · Wallabag
last updated 2026-08-29 · no votes, no pay-to-list · just what's real
how to choose a Paperpile alternative
Easiest to get running
Zotero — a one-click install, no server to maintain.
Most proven
Karakeep, with 18,000 GitHub stars — the largest community of the 3, which usually means more answers when something breaks.
Works on your phone
Zotero has a mobile app on iOS and Android.
what you give up by leaving Paperpile
- citation graph scale
- team libraries and institutional access
- licensed scholarly metadata
- publisher-specific import reliability
None of the picks above covers all of it. The full verdict says which gaps matter.
Paperpile alternatives at a glance
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| Zotero | open source | one-click install | macos, windows, linux, ios, android, browser-extension | 14,890 | 2026-08 |
| Karakeep | AGPL-3.0 | one-click install | self-hosted, web | 18,000 | 2026-08 |
| Wallabag | MIT | docker to self-host | self-hosted, web | 11,000 | 2026-08 |
why people still pay for Paperpile
Paperpile: Researchers pay for correct metadata, resilient importers, citation coverage, and workflows that survive publisher and browser changes.
questions about switching from Paperpile
Is there an open-source alternative to Paperpile?
Yes: Zotero, Karakeep, Wallabag. Every tool on this page is open source: no trials, no crippled tiers.
Can open source really replace Paperpile?
Our verdict is YES. Karakeep (18k stars), Zotero (15k stars), Wallabag (11k stars) are mature open-source replacements for Paperpile — self-host in one command and stop paying. The full verdict, and what you give up by switching, is at caniopensourceit.online/paperpile.
What is the easiest open-source Paperpile alternative to set up?
Zotero — a one-click install, no server to maintain.
What is the most popular open-source Paperpile alternative?
By GitHub stars, Karakeep (18,000). Zotero is next with 14,890.
