{"id":41756,"date":"2026-07-16T22:22:13","date_gmt":"2026-07-16T20:22:13","guid":{"rendered":"https:\/\/www.graviton.at\/letterswaplibrary\/built-a-free-browser-based-csv-cleaner-no-upload-no-signup-self-promo\/"},"modified":"2026-07-16T22:22:13","modified_gmt":"2026-07-16T20:22:13","slug":"built-a-free-browser-based-csv-cleaner-no-upload-no-signup-self-promo","status":"publish","type":"post","link":"https:\/\/www.graviton.at\/letterswaplibrary\/built-a-free-browser-based-csv-cleaner-no-upload-no-signup-self-promo\/","title":{"rendered":"Built A Free Browser-based CSV Cleaner \u2014 No Upload, No Signup [Self Promo]"},"content":{"rendered":"<p><!-- SC_OFF --><\/p>\n<div class=\"md\">\n<p>Kept running into the same problem: messy CSVs with duplicate rows, stray whitespace, and broken email fields, and no fast way to clean them without spinning up a script every time.<\/p>\n<p>So I built CSVCleaner (hackiom.xyz) \u2014 drop a file in and it removes duplicates, trims whitespace, and validates emails right in your browser. Nothing gets uploaded to a server, so it works fully offline and there&#8217;s zero signup friction.<\/p>\n<p>Still actively building this out, so I&#8217;d love feedback on what other cleanup features would be useful \u2014 currently thinking about type detection, column renaming, and null handling next.<\/p>\n<p>Happy to answer questions about how it works under the hood.<\/p>\n<\/div>\n<p><!-- SC_ON -->   submitted by   <a href=\"https:\/\/www.reddit.com\/user\/chriscrossjid\"> \/u\/chriscrossjid <\/a> <br \/> <span><a href=\"http:\/\/hackiom.xyz\/\">[link]<\/a><\/span>   <span><a href=\"https:\/\/www.reddit.com\/r\/datasets\/comments\/1uycs2u\/built_a_free_browserbased_csv_cleaner_no_upload\/\">[comments]<\/a><\/span><\/p><div class='watch-action'><div class='watch-position align-right'><div class='action-like'><a class='lbg-style1 like-41756 jlk' href='javascript:void(0)' data-task='like' data-post_id='41756' data-nonce='9de69db8d5' rel='nofollow'><img class='wti-pixel' src='https:\/\/www.graviton.at\/letterswaplibrary\/wp-content\/plugins\/wti-like-post\/images\/pixel.gif' title='Like' \/><span class='lc-41756 lc'>0<\/span><\/a><\/div><\/div> <div class='status-41756 status align-right'><\/div><\/div><div class='wti-clear'><\/div>","protected":false},"excerpt":{"rendered":"<p>Kept running into the same problem: messy CSVs with duplicate rows, stray whitespace, and broken email fields,&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[85],"tags":[],"class_list":["post-41756","post","type-post","status-publish","format-standard","hentry","category-datatards","wpcat-85-id"],"_links":{"self":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts\/41756","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/comments?post=41756"}],"version-history":[{"count":0,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts\/41756\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/media?parent=41756"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/categories?post=41756"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/tags?post=41756"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}