-
!ax
arXiv arxiv.org
Open preprint server for science, math, and CS (Cornell University)
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!bc
Bandcamp bandcamp.com
Music platform that pays artists fairly; supports independent music
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!bang
bang index udo.se
Index of all the bangs
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!base
BASE www.base-search.net
300M+ academic documents from 12,000+ providers; Bielefeld University Library, Germany
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!dlite
DDG Lite lite.duckduckgo.com
Minimal, fast, low-bandwidth DuckDuckGo
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!dnoai
DDG No AI noai.duckduckgo.com
DuckDuckGo without AI summaries
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!ddb
Deutsche Digitale Bibliothek www.deutsche-digitale-bibliothek.de
German digital cultural heritage — books, images, film, music from 40,000+ institutions
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!doaj
DOAJ doaj.org
Directory of Open Access Journals — peer-reviewed, free to read
-
!ddg
DuckDuckGo duckduckgo.com
Privacy-respecting search, no personal tracking
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!eco
Ecosia www.ecosia.org
Search engine that plants trees with its ad revenue
-
!epmc
Europe PMC europepmc.org
European biomedical literature archive; broader coverage than PubMed, EMBL-EBI (UK)
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!eu
Europeana www.europeana.eu
European cultural heritage — art, books, music, film
-
!fsd
Freesound freesound.org
Creative Commons sound library, community-contributed
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!gbif
GBIF www.gbif.org
Global Biodiversity Information Facility; open species occurrence data, hosted in Denmark
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!hal
HAL Open Science hal.science
French and European open research archive; papers deposited directly by their authors
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!ifx
iFixit www.ifixit.com
Open repair guides — right to repair advocate
-
!imdb
IMDb www.imdb.com
The infamous internet movie database
-
!inat
iNaturalist www.inaturalist.org
Open biodiversity observations from around the world
-
!ia
Internet Archive archive.org
Non-profit digital library of books, films, music, and the web
-
!inv
Inventaire inventaire.io
Open book catalogue and sharing platform built on Wikidata
-
!jam
Jamendo www.jamendo.com
CC-licensed music community; stream and download free music, musician-friendly, Luxembourg
-
!ka
Khan Academy www.khanacademy.org
Free education for everyone, non-profit
-
!lv
LibriVox librivox.org
Free public domain audiobooks read by volunteers
-
!lilo
Lilo search.lilo.org
French solidarity search engine; ad revenue funds social and environmental projects
-
!ocw
MIT OpenCourseWare ocw.mit.edu
Free MIT course materials openly published online
-
!mj
Mojeek www.mojeek.com
Independent index, no user tracking
-
!mw
Mwmbl mwmbl.org
Community-built open source search index
-
!ol
Open Library openlibrary.org
Universal catalogue of books by the Internet Archive
-
!opu
OpenLearn www.open.edu
Free open learning from the UK's Open University — courses, articles, videos
-
!osm
OpenStreetMap www.openstreetmap.org
Community-built open map of the world
-
!ov
Openverse openverse.org
Search openly licensed images and audio from across the web
-
!gut
Project Gutenberg www.gutenberg.org
Over 70,000 free public domain ebooks
-
!pm
PubMed pubmed.ncbi.nlm.nih.gov
Free access to biomedical and life science literature, NIH
-
!qw
Qwant www.qwant.com
European search engine, no tracking
-
!rij
Rijksstudio www.rijksmuseum.nl
700,000+ free high-res artworks from the Rijksmuseum, Amsterdam — freely downloadable
-
!ss
Semantic Scholar www.semanticscholar.org
Free AI-powered academic research tool (Allen Institute, non-profit)
-
!seb
Standard Ebooks standardebooks.org
Carefully produced free and open ebooks from public domain works
-
!sp
Startpage www.startpage.com
Google results behind a privacy shield
-
!swc
Swisscows swisscows.com
Swiss privacy search; semantic technology, no data collection, renewable energy data centre
-
!ted
TED www.ted.com
Talks from independent thinkers on science, technology, and ideas worth spreading
-
!wb
Wayback Machine web.archive.org
See archived versions of any URL — paste a web address after the bang
-
!wbk
Wikibooks en.wikibooks.org
Free open-content textbooks, Wikimedia
-
!wd
Wikidata www.wikidata.org
Open structured knowledge base, Wikimedia
-
!wc
Wikimedia Commons commons.wikimedia.org
Freely reusable media — images, audio, video
-
!w
Wikipedia en.wikipedia.org
Free community-edited encyclopedia
-
!wda
Wikipedia DA da.wikipedia.org
Danish Wikipedia
-
!wde
Wikipedia DE de.wikipedia.org
German Wikipedia
-
!wes
Wikipedia ES es.wikipedia.org
Spanish Wikipedia
-
!wfi
Wikipedia FI fi.wikipedia.org
Finnish Wikipedia
-
!wfr
Wikipedia FR fr.wikipedia.org
French Wikipedia
-
!wnl
Wikipedia NL nl.wikipedia.org
Dutch Wikipedia
-
!wno
Wikipedia NO no.wikipedia.org
Norwegian Wikipedia
-
!wsv
Wikipedia SV sv.wikipedia.org
Swedish Wikipedia
-
!wq
Wikiquote en.wikiquote.org
Free collection of notable quotations, Wikimedia
-
!wso
Wikisource en.wikisource.org
Free library of source texts and literature, Wikimedia
-
!wsp
Wikispecies species.wikimedia.org
Free directory of all life on Earth — taxonomy and species data, Wikimedia
-
!wvy
Wikiversity en.wikiversity.org
Free learning resources and research projects from the Wikimedia Foundation
-
!wv
WikiVoyage en.wikivoyage.org
Free open travel guide, Wikimedia
-
!wt
Wiktionary en.wiktionary.org
Free dictionary and thesaurus, Wikimedia
-
!zen
Zenodo zenodo.org
Open research data and publications repository (CERN)