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How to get more out of the TooLab utilities: image converter, QR codes, colors, text compare, timers and more.

Tools How to remove duplicate rows from a CSV file Remove identical rows from a CSV in your browser, check what counts as a duplicate, and save a clean copy without changing the original. Emily ParkerOctober 23, 20264 min read
Tools How to edit a huge CSV without opening Excel Open and edit a large CSV in your browser, find or sort rows, remove duplicates, and save a corrected copy without launching Excel. Megan FosterOctober 23, 20264 min read
Tools How to find and replace values in a large CSV Find a value in a large CSV, check matching rows, edit the right cells, and save a clean copy without changing other data. Sarah CollinsOctober 23, 20264 min read
Tools How to inspect a 10-million-row CSV file locally Open and inspect a CSV with up to 10 million rows in your browser. Search, sort and check large datasets without uploading the file. Megan FosterOctober 23, 20264 min read
Tools How to correct a CSV and save the edited file Open a CSV in TooLab's browser editor, find and fix incorrect values, remove duplicates, then download a corrected copy while keeping the original safe. Rachel BennettOctober 23, 20264 min read
Tools How to choose QR code colors that still scan Choose QR code colors with enough contrast, keep a clear border, and test the code on phones before you print or share it for reliable scanning. Rachel BennettOctober 23, 20264 min read
Tools How to convert HEX to RGB and HSL Convert a HEX color to RGB and HSL by hand, understand the channel values, and check colors on your screen with TooLab's Color Picker. Lauren HughesOctober 21, 20264 min read
Tools How to add a logo to a QR code without breaking it Add a logo to a QR code safely. Learn how much of the code to cover, which colors scan reliably, and how to test it before sharing or printing. Sarah CollinsOctober 21, 20265 min read
Tools How to make a QR code for a website link Create a QR code that opens your website, customize its color if you want, then test it with a phone before sharing or printing it. Rachel BennettOctober 21, 20264 min read
Tools How to sort a large CSV file in your browser Sort a large CSV file without installing software. Learn how to choose a column, check the order, and avoid common sorting mistakes. Megan FosterOctober 21, 20264 min read
Tools Make a QR code for Wi-Fi guests Create a Wi-Fi QR code guests can scan to join your network, choose the right security type, and test it before you print or share it. Sarah CollinsOctober 21, 20264 min read