Qiqqa (pronounced "Quicker") is a

free and open-source Free and open-source software (FOSS) is software available under a Software license, license that grants users the right to use, modify, and distribute the software modified or not to everyone free of charge. FOSS is an inclusive umbrella term ...

software that allows researchers to work with thousands of PDFs. It combines

PDF Portable document format (PDF), standardized as ISO 32000, is a file format developed by Adobe Inc., Adobe in 1992 to present documents, including text formatting and images, in a manner independent of application software, computer hardware, ...

reference management tools, a citation manager, and a mind map brainstorming tool. It integrates with

Microsoft Word Microsoft Word is a word processor program, word processing program developed by Microsoft. It was first released on October 25, 1983, under the name Multi-Tool Word for Xenix systems. Subsequent versions were later written for several other platf ...

XP, 2003, 2007 and 2010 and

BibTeX BibTeX is both a bibliographic flat-file database file format and a software program for processing these files to produce lists of references (citations). The BibTeX file format is a widely used standard with broad support by reference manage ...

LaTeX Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latices are found in nature, but synthetic latices are common as well. In nature, latex is found as a wikt:milky, milky fluid, which is present in 10% of all floweri ...

to automatically produce citations and bibliographies in thousands of styles. The development of Qiqqa began in Cambridge, UK, in December 2009. A public alpha was released in April 2010, offering PDF management and brainstorming capabilities. Subsequent releases have seen the incorporation of the Web Library, OCR, integration with BibTeX and other reference managers, and the use of

natural language processing Natural language processing (NLP) is a subfield of computer science and especially artificial intelligence. It is primarily concerned with providing computers with the ability to process data encoded in natural language and is thus closely related ...

(NLP) techniques to guide researchers in their reading. In 2011, Qiqqa won both the

University of Cambridge The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, wo ...

CUE and CUTEC, and the Cambridge Wireless Discovering Start-Ups competitions. Qiqqa was an award winner in the 2012 Santander Universities Entrepreneurship Awards. In 2019, Qiqqa decided to change software pricing model and make it free and open-source: "After 10 years of your support we have decided to make Qiqqa open source so that it can be grown and extended by its community of thousands of active users."

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* * Also available i
DOCX format
{{Reference management software Document management systems Free BibTeX software Free note-taking software Free reference management software Mind-mapping software Note-taking software PDF readers QDA software Reference management software Software that uses XUL

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