23 sources, one query
Ten every time: Wikipedia, Stack Exchange, Hacker News, GitHub (GitLab as fallback), OpenAlex (Crossref as fallback), Europe PMC, Internet Archive, Open Library, the Mwmbl web index, Wikibooks. Thirteen more when the query or lens calls for them: Wiktionary, Wikinews, Wikiquote, Wikivoyage, Wikisource, Zenodo, ClinicalTrials.gov, GOV.UK, the Federal Register, the open-data catalogues of the European Union, Canada and Australia, and full-text search inside scanned books.
In the sources' own words
Up to three sentences copied character for character from the top results, each numbered to the result it came from.
Why ranked
Every result says in one line why it is there and opens the arithmetic behind its position: text match, evidence the source reports, the source's own order.
Before AI
One switch limits results to items dated up to 30 November 2022. It is a date filter, not a detector.
Lenses
All, Learn, Research, Build, Discuss, Official choose and re-weight the sources for the job.
Saved copies
If a source fails or runs out of quota, the last answer this browser got for the same search is shown, labelled with its age.
Did you mean
Wikipedia's spelling suggestion is passed on when it differs from what was typed.
Cite
A ready citation for any result, one press to copy.
Operators and bangs
"exact phrase", -word, in:papers, in:gov, in:dict, se:physics, before:2020, after:2019-06. Bangs such as !g, !ddg, !maps and !yt hand the query to another engine, so it can be your default search.
Works offline as a shell
Installable; the page opens with no connection and says which sources did not answer.