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Tools
How to get more out of the TooLab utilities: image converter, QR codes, colors, text compare, timers and more.
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Tools
Duplicate product IDs in a CSV: what to do
Find repeated product IDs, decide which record to keep, and clean a CSV without deleting valid variants or losing the original data.
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Tools
Why a long CSV has a different row count in Excel
Find out why Excel shows fewer or more rows than a long CSV, check the file's actual records, and choose a safe way to import or split it.
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Tools
How to identify a shade in a slide presentation
Pick a shade from a slide on screen, read its HEX and RGB values, and learn why the sampled color may differ from the original slide value.
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Tools
How to change a favicon's file format for old browsers
Convert a PNG or other image to ICO for older browser support, then add the right favicon link and check its dimensions, location, and cache.
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Tools
How to make QR codes for classroom equipment
Plan classroom equipment QR labels that open the right instructions, report form, or inventory page, then check scan distance, contrast, and placement.
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Tools
Why a font preview differs from printed output
Compare the font preview on your screen with the printed page, then check font substitution, app settings, scaling and printer options.
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Tools
How to verify a website form's CSV export
Check that a website form's CSV export has the right rows, columns, and values, and catch quoting or formatting problems before importing it.
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Tools
How to compare two email templates before a campaign
Compare two email templates, spot wording and placeholder changes, then check links, subject lines, and campaign details before you send.
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Tools
How to compare subtle blue-gray dashboard colors
Sample blue-gray dashboard colors, compare their HEX and RGB values, and separate a real interface mismatch from effects caused by your screen.
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How to choose a time for a global study group
Compare local times, find overlapping waking hours, and choose a fair meeting slot for students in different time zones with a browser-based world clock.
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Tools
How to build a color palette from a photo
Turn a photo into a useful five-color palette. Sample colors on screen, save their HEX codes, and choose shades that work together.
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Tools
Why a white background may not be pure white
Check whether a white background is really #FFFFFF, find off-white colors or overlays, and learn why your screen can still make white look tinted.