Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Recoll
open-in-new
<h2 id="features">Features</h2> <ul><li><a href="/facts/Qt_(framework)/gVhwlQnJ">Qt</a> GUI.</li> <li><a href="/facts/Xapian/QNLNMUXP">Xapian</a> backend.</li> <li>Indexes the contents of many document types: text, <a href="/facts/HTML/sSc3fT78">HTML</a>, <a href="/facts/Email/6pD9GLtI">email</a> stores of all kinds, <a href="/facts/OpenDocument/pMtcVuNr">OpenDocument</a>, <a href="/facts/Microsoft_Office/faD8vYG0">Microsoft Office</a> and <a href="/facts/Office_Open_XML/294uNJrf">Office Open XML</a>, <a href="/facts/AbiWord/sAXf9YKV">AbiWord</a>, <a href="/facts/KWord/7fVdRE3s">KWord</a>, <a href="/facts/Gaim/HB6pG0V2">Gaim</a>, <a href="/facts/Lyx/dSrv830u">Lyx</a>, <a href="/facts/Scribus/xkwIUsG6">Scribus</a>, <a href="/facts/PDF/C9Mn1vYL">PDF</a>, <a href="/facts/WordPerfect/x0R6HU9f">WordPerfect</a>, <a href="/facts/PostScript/h2XwbcmC">PostScript</a>, <a href="/facts/Rich_Text_Format/hsVH9Jot">RTF</a>, <a href="/facts/TeX/HDrl3Yvd">TeX</a>, <a href="/facts/Device_independent_file_format/afmP6zeJ">DVI</a>, <a href="/facts/DjVu/gDukkcd1">DjVu</a>, <a href="/facts/MP3/yrBpxUSD">MP3</a> and other audio file formats, <a href="/facts/JPEG/HQ8QS3uB">JPEG</a> and other image file formats.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a></li> <li>Recursively processes embedded documents (<a href="/facts/E-Mail/6pD9GLtI">email</a> attachments, <a href="/facts/ZIP_(file_format)/qDrrYIB9">zip</a> archives) to arbitrary depths.</li> <li>Query facilities with boolean searches, wildcards, phrases, proximity, and filters on file types and directory trees.</li> <li>GUI Boolean search build tool.</li> <li>Xesam query language support.</li> <li>Word <a href="/facts/Stemming/lqtKp4X7">stemming</a> is performed at query time (you can switch stemming language after indexing).</li> <li>Multiple indexes are selectable at query time (i.e., personal + system indexes).</li> <li>Natively based on Unicode. Supports many languages and character sets,[<i>which?</i>] including good support for East Asian texts (<a href="/facts/CJK/TGz9tR4C">CJK</a>).</li> <li><a href="/facts/MD5/8WIXb9Dq">MD5</a> document hashes for the elimination of duplicates in results.</li> <li>Batch and real-time indexing modes.</li> <li><a href="/facts/Python_(programming_language)/YbuGqofa">Python</a> <a href="/facts/API/GMlN4vUr">API</a>.</li> <li><a href="/facts/GNOME_Shell/NfkRU7yS">GNOME Shell</a> search provider, WEB interface, and <a href="/facts/Firefox/xez2zv8H">Firefox</a> history extensions.</li></ul> <h2 id="file-type-supported">File type supported</h2> <h3>File types indexed natively</h3> <ul><li>Text.</li> <li>Html.</li> <li><a href="/facts/Maildir/styR8olS">Maildir</a>, MH, and mailbox (Mozilla, Thunderbird, and Evolution). Evolution requires .cache to be removed from the skippedNames list in the GUI Indexing preferences/Local Parameters/ Pane to index local copies of IMAP mail.</li> <li>Gaim and purple log files.</li> <li>Scribus files.</li> <li><a href="/facts/Man_page/S2yYjy0J">Man pages</a> (needs Groff).</li> <li>Mimehtml web archive format (support based on the mail filter).</li> <li>All the following need Python 3: <ul><li>Dia diagrams.</li> <li>Excel and PowerPoint (pre-open XML).</li> <li>Tar archives. Tar file indexing is disabled by default given that tar archives don't typically contain the kind of documents that people search for, so it needs to be enabled explicitly with "[index]" or "application/x-tar=execm rcltar" in a $HOME/.recoll/mimeconf file.</li> <li>Zip archives.</li> <li>Konqueror web archive format (uses the tarfile Python standard library module).</li></ul></li></ul> <h3>File types indexed with external helpers</h3> <ul><li>PDF files.</li> <li>MS-Word files.</li> <li>Wordperfect files.</li> <li>RTF files.</li> <li>Image and audio file tags.</li> <li>Abiword files.</li> <li>Fb2, Epub, and CHM ebooks.</li> <li>Kword files.</li> <li>Microsoft Office traditional and Open XML files.</li> <li>OpenOffice files.</li> <li>SVG files.</li> <li>Okular annotations files.</li> <li>HWP files (without page numbering).</li></ul> <h2 id="see-also">See also</h2> <ul> <li>Free and open-source software portal</li></ul> <ul><li><a href="/facts/Desktop_search/D5y7MJx1">Desktop search</a></li> <li><a href="/facts/List_of_search_engines/cznsla0a">List of desktop search engines</a></li></ul> <h2 id="external-links">External links</h2> Wikimedia Commons has media related to Recoll. <ul><li><a href="https://www.lesbonscomptes.com/recoll/pages/index-recoll.html">Official website</a> </li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Recoll for OS/2". ecsoft2.org. Retrieved 2020-09-22. <a href="https://ecsoft2.org/recoll-os2" target="_blank">https://ecsoft2.org/recoll-os2</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Warpstock Europe Conference 2020". youtube.com. 2020-05-17. Archived from the original on 2021-12-20. Retrieved 2020-09-22. <a href="https://www.youtube.com/watch?v=olz_KpTz1cU" target="_blank">https://www.youtube.com/watch?v=olz_KpTz1cU</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Dockes, Jean-François. "Recoll Indexing". Retrieved 2023-11-10. <a href="https://www.lesbonscomptes.com/recoll/usermanual/index.html#RCL.INDEXING" target="_blank">https://www.lesbonscomptes.com/recoll/usermanual/index.html#RCL.INDEXING</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Recoll Features" (in English and French). Retrieved 2023-11-10. <a href="https://www.recoll.org/features.html" target="_blank">https://www.recoll.org/features.html</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>