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Guides, deep-dives, and practical tips for developers and productivity nerds.

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What If I Invested
See what your investment would be worth today with an animated historical chart.
QR Code Generator
Generate a QR code from any text or URL. Download as PNG or SVG instantly.
AI Token Calculator
Paste any text and instantly see token count, context usage, and estimated cost for GPT, Claude & Gemini models.
AI Prompt Improver
Score your AI prompt across 7 quality dimensions and get an improved version instantly.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back. See the current epoch time live, with timezone support.
Markdown to PDF
Convert Markdown to a clean, printable PDF. No installs required.
Username Generator
Generate unique usernames with style options and bulk generation.
Deep Link Tester
Test and debug deep links, Universal Links (iOS), and App Links (Android) directly in your browser.
Word Counter
Count words, characters, sentences, and estimate reading time.
Password Generator
Generate strong, secure passwords with custom length and character options.
URL Slug GeneratorSoon
Convert any title into a clean, SEO-friendly URL slug.
Cron Expression GeneratorSoon
Build cron expressions visually and see the next scheduled run times in plain English.
JWT DecoderSoon
Paste a JWT and instantly decode the header, payload, and expiry. Runs entirely in your browser.
Base64 Encoder / DecoderSoon
Encode or decode Base64 text and files instantly, with URL-safe mode support.
Loan CalculatorSoon
Calculate monthly repayments, total interest, and see a full amortization schedule for any loan.
Age & Date CalculatorSoon
Calculate exact age or the number of days, weeks, and months between any two dates.
AI Privacy Policy GraderSoon
Paste any privacy policy and get a structured risk score per category - data collection, third-party sharing, retention, and your deletion rights.
AI Readability AnalyzerSoon
Paste any text to get a grade-level score, sentence complexity breakdown, and specific rewrites for hard-to-read sections.
AI Salary Negotiation CoachSoon
Enter your role, experience, and target salary to get a personalized negotiation script with anchoring tactics and objection responses.