Tips, tutorials and updates
Set watermark position, opacity and batch settings once, then apply them across a whole folder of images without installing anything.
Format scrambled HTML in two passes — indent it for readability, then validate tag structure — so the markup is correct, not just tidy.
Tune gradients and shadows with a token-based workflow that turns vague design feedback into fast, repeatable revisions.
Work out increases, discounts, proportions and reverse percentage problems in seconds, with the formula behind each answer explained.
Diagnose 4xx and 5xx HTTP status codes fast with a plain-language reference, step-by-step fix workflow and quick lookup table.
Validate your cron expression in the browser and read every field back in plain language before your schedule reaches production.
Clean up text, compress images, draft with AI and convert files in your browser using a workflow that needs no installs and no accounts.
Test which of your desktop programs a browser can genuinely replace, with a seven-step method and honest limits.
See what your BMI number does and does not tell you, how to read the category label, and which other report measurements matter more.
Format, validate and explore JSON in your browser, with beautify, minify and tree view that keep your data on your own device.
Convert HEX, RGB and HSL values in your browser with no signup, and keep your palette consistent across every tool you use.
Get instant word, character, sentence and reading-time counts as you type, with no upload and nothing to install.
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Hands-on tutorials broken down by tool: what problem each one solves, how to use it, and the pitfalls to avoid — with step-by-step instructions you can follow right away.
The details that double your efficiency: shortcuts, parameter combinations, batch-processing approaches and the habits that genuinely save time at work.
Technical deep dives into encoding, data formats and engineering practice — focused on principles and reasoning rather than recipes.
Free text processing, PDF tools, AI writing and more