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How to get more out of the TooLab utilities: image converter, QR codes, colors, text compare, timers and more.
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When to switch between lossless image formats
Learn when PNG, WebP, GIF, BMP, TIFF, or ICO is the right choice, and how to convert without losing detail or transparency.
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Tools
Create a QR code for a pet's contact information
Make a pet ID QR code with your contact details, choose what to share, and test it on a phone before attaching it to a collar or carrier.
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How to measure repeated assembly task times
Measure repeated assembly cycles fairly, find a useful typical duration, and spot delays without letting one unusually fast or slow run skew results.
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Mixed date formats in a CSV: what to check
Learn how to spot ambiguous dates, confirm whether values use month-first or day-first order, and standardize a mixed-region CSV without changing dates by guesswork.
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How to time short laboratory observations in a browser
Use a browser stopwatch for brief lab observations, choose clear start and stop points, and keep repeat measurements consistent.
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How to create an SMS QR code with a message
Create an SMS QR code that opens a text to the right number with your message filled in, then test it before printing or sharing.
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How to time a science fair demonstration
Plan a realistic science fair demo, time each part with a browser stopwatch, and leave room for questions without rushing the result.
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How to coordinate a birthday call across time zones
Compare local times, account for daylight saving and the date line, then choose a birthday call time that works for guests across continents.
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Why installed font permission is restricted in browsers
Learn why browsers limit access to installed fonts, which browsers support the permission, and how to allow it safely for a font check.
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How to find rows with long descriptions
Find descriptions that exceed your expected character limit, calculate their lengths, and trace each result to the right CSV row without changing the original.
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How to check fonts for scientific unit symbols
Check whether installed fonts display µ, μ, °C, Ω, superscripts and other scientific symbols, then find out why a character is missing or substituted.
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When to edit a raw screen recording before sharing
Learn when to share a screen recording as-is and when to trim, mute, or redact it, while keeping a clean original for support or review.
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How to compare two email drafts line by line
Compare two email drafts line by line, spot changed wording and punctuation, and decide which edits to keep before you send.