How-tos & tutorials · same categories as the homepage · every tool covered
Guides — learn & use the tools
Search across editorial articles and per-tool guides. Filter by category to match how you browse tools on the home page.
Data & format converters
JSON, CSV, YAML, XML, Base64, URLs, Markdown, and PDF export—everything stays in your browser except PDF rendering.
Text & writing
Word counts, case styles, lorem ipsum, citations, similarity highlights, and diffs for drafts and homework.
Study & math
Pomodoro timer, GPA and grade targets, percentages, quadratics, statistics, and age helpers.
Generators
UUIDs and secure passwords using Web Crypto.
Dev, color & units
Colors, radixes, timestamps, and everyday unit conversions.
Developer tools
Regex, JWT, cron, hashing, HTML entities, SQL formatting, permissions, HTTP reference, and JSONPath—browser-only.
Money & work
VAT/tax-style splits and salary period conversions.
Sales & business
Commission tiers, discounts, ROI, break-even, lead scoring, tax, invoices, and margin math.
Project estimation
Story points, PERT, sprint capacity, timelines, burn rate, quoting, and function points.
Hybrid (AI-assisted)
AI helps draft content; still rate-limited and review before you send.
AI tools
Summaries and code explanations with strict daily limits.