{"id":42002,"date":"2026-08-18T01:27:04","date_gmt":"2026-08-17T23:27:04","guid":{"rendered":"https:\/\/www.graviton.at\/letterswaplibrary\/in-browser-dataset-workbench-converter-completely-free-no-upload-no-signup\/"},"modified":"2026-08-18T01:27:04","modified_gmt":"2026-08-17T23:27:04","slug":"in-browser-dataset-workbench-converter-completely-free-no-upload-no-signup","status":"publish","type":"post","link":"https:\/\/www.graviton.at\/letterswaplibrary\/in-browser-dataset-workbench-converter-completely-free-no-upload-no-signup\/","title":{"rendered":"In-browser Dataset Workbench \/ Converter \u2014 Completely FREE, No Upload, No Signup"},"content":{"rendered":"<p><!-- SC_OFF --><\/p>\n<div class=\"md\">\n<p>Built a simple browser-based tool for quickly opening and exploring data files.<\/p>\n<p>No signup, no account, no backend. Everything runs locally in your browser with DuckDB-WASM, so your data never leaves the tab.<\/p>\n<p>It supports Parquet, CSV, TSV, JSON, NDJSON, Arrow, and Excel.<\/p>\n<p>You can:<\/p>\n<ul>\n<li>browse millions of rows<\/li>\n<li>profile columns<\/li>\n<li>filter, sort, rename, cast, dedupe, and transform data<\/li>\n<li>edit cells with undo\/redo<\/li>\n<li>run SQL<\/li>\n<li>export to CSV, Parquet, Excel, JSON, and more<\/li>\n<\/ul>\n<p><a href=\"http:\/\/parquetbay.com\/\">parquetbay.com<\/a><\/p>\n<p>Free, no ads. If a file in your workflow breaks it, tell me and I&#8217;ll fix it \u2014 that&#8217;s most of why I&#8217;m posting. All suggestions\/critique is welcomed!<\/p>\n<\/div>\n<p><!-- SC_ON -->   submitted by   <a href=\"https:\/\/www.reddit.com\/user\/jancekbancek7\"> \/u\/jancekbancek7 <\/a> <br \/> <span><a href=\"https:\/\/www.reddit.com\/r\/datasets\/comments\/1vr75sc\/inbrowser_dataset_workbench_converter_completely\/\">[link]<\/a><\/span>   <span><a href=\"https:\/\/www.reddit.com\/r\/datasets\/comments\/1vr75sc\/inbrowser_dataset_workbench_converter_completely\/\">[comments]<\/a><\/span><\/p><div class='watch-action'><div class='watch-position align-right'><div class='action-like'><a class='lbg-style1 like-42002 jlk' href='javascript:void(0)' data-task='like' data-post_id='42002' 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-42002 lc'>0<\/span><\/a><\/div><\/div> <div class='status-42002 status align-right'><\/div><\/div><div class='wti-clear'><\/div>","protected":false},"excerpt":{"rendered":"<p>Built a simple browser-based tool for quickly opening and exploring data files. No signup, no account, no&#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-42002","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\/42002","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=42002"}],"version-history":[{"count":0,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/posts\/42002\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/media?parent=42002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/categories?post=42002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.graviton.at\/letterswaplibrary\/wp-json\/wp\/v2\/tags?post=42002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}