ASCII Table Reference: Character Codes and When You Need Them
Look up any ASCII character code in seconds, understand control characters and encoding differences, and fix invisible-character problems in your text files.
Tips, tutorials and updates
Look up any ASCII character code in seconds, understand control characters and encoding differences, and fix invisible-character problems in your text files.
Draft faster without losing your voice: a step-by-step workflow for using an AI writing assistant, plus the editing checks that keep quality high.
Generate a complete favicon set from one square image, with the exact sizes browsers, iOS and Android expect.
Format and minify JavaScript in the right order, verify the build, and deliver code that is both readable for reviewers and small for browsers.
Turn messy copied web pages into clean, structured Markdown you can edit, search and publish, using a five-step browser workflow.
Format, validate, and debug JSON payloads locally in your browser, so malformed API responses get fixed in seconds instead of hours.
Convert CSV files to clean JSON in your browser, with control over headers, data types, and output structure, without uploading your data.
A CSS shadow generator lets you preview in real time and copy the code by dragging sliders, helping you quickly build visual hierarchy in your portfolio. The core approach is to stack two or three layers of shadow: one large and faint for ambient light, one small and dark for contact shadow, using dark blue or dark gray at 10% to 20% opacity, with a large blur radius and a small or even negative spread radius for crisper edges. Hero cards, thumbnails, sticky navs, and modals are common use cases, but shadow character should stay consistent across the same page. To judge if it's overdone, squint and see whether the shadow steals attention from the content.
Convert HTML to Markdown at volume with a repeatable batch workflow covering triage, conversion, normalisation and verification.
A practical checklist for picking a JS formatter that stays deterministic, integrates with your editor and CI, and fits how your team actually works.
Convert JSON API responses into clean, sortable CSV tables in your browser, with a step-by-step workflow that catches silent data loss before it reaches your spreadsheet.
Fix sideways or upside-down PDF pages in one pass instead of opening each page by hand.
Browse all articles by topic
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