All Online Utilities & Tools

Generate standard-compliant /llms.txt and /llms-full.txt files to optimize your website for LLM crawlers, AI search agents, and GEO. 100% browser-based with multi-language and Greek support.

Detect who unfollowed you on Instagram using your official data export ZIP. Features snapshot baseline comparison to isolate new unfollows without passwords or external servers.

Cryptographically secure lottery quick pick generator and multi-ball draw simulator for US Powerball, Mega Millions, EuroMillions, and custom games.

Calculate biological canine age into human equivalents using Epigenetic DNA methylation and AVMA breed size metrics.

Interactive HTML5 wheel spinner for fair random decisions, giveaway drawings, and weighted choices.

3D interactive coin flipper and high-speed Monte Carlo probability batch simulator backed by Web Crypto API entropy.

Calculate long-term compound growth, monthly contributions, and investment returns.

Calculate institutional Weighted Average Cost of Capital (WACC), after-tax cost of debt, CAPM cost of equity, and project hurdle rates with sensitivity matrices.

Calculate discounted cash flows, tax shields, and break-even lease payments to compare equipment leasing versus debt-financed purchasing.

Calculate SaaS gross burn, net monthly burn, dynamic cash runway, default-alive status, and venture fundraising zero-cash horizon milestones.

Calculate quarterly estimated tax payments for freelancers, contractors, and LLCs. Computes Schedule SE, Section 199A QBI, and IRS Safe Harbor thresholds.

Compare Triple Net (NNN), Modified Gross, and Full-Service Gross commercial leases with CAM, property tax, building insurance, and multi-year escalation projections.

Calculate startup employee stock option values (ISO & NSO) using Black-Scholes-Merton with Greeks, exercise costs, and tax exit modeling.

Double-encipher secret messages with a dual-stage pipeline combining customizable Pig Latin phonetics with International Morse Code audio telemetry.

Generate cryptographically secure passwords with instant NATO phonetic alphabet translation, audio readouts, and character disambiguation for telephone and tech support verification.

Inspect, parse, and dissect RFC 4122 UUID identifiers. Decode embedded Gregorian timestamps, Unix milliseconds, version nibbles, Leach-Salz variants, and IEEE 802 MAC hardware nodes.

Interactive Mad Libs word scaffold and random narrative generator featuring multi-genre story templates, customizable parts-of-speech registers, and instant one-click export.

Generate cryptographically secure EUI-48 MAC physical addresses with OUI vendor cloning, Unicast/Multicast bit controls, and multiple delimiter formats.

Generate true spherical random geographic GPS coordinates worldwide with land, ocean, continental, and bounding box filtering in DD, DMS, GeoJSON, and WKT formats.

Remove duplicate records and filter tabular CSV/TSV data using composite multi-index columns and RFC 4180 parsing.

Analyze word frequencies, extract and filter stopwords, render interactive density clouds, and calculate lexical diversity metrics in real time.

Evaluate strings for bidirectional palindromic symmetry, mutual anagram equivalence, and palindromic permutation potential with customizable whitespace, diacritic, and punctuation filtering.

Instantly normalize, transform, and convert text identifiers between camelCase, PascalCase, kebab-case, snake_case, Title Case, and CONSTANT_CASE.

Test regular expressions in real-time, extract matching text groups, perform search and replace operations, and debug RegEx patterns instantly.

Identify poetry rhyme schemes (ABAB, AABB, Sonnet, Limerick), inspect phonetic cadence, and estimate verse syllable meters instantly in your browser.

Analyze poetic scansion, count syllables, calculate iambic foot ratios, and verify blank verse or Shakespearean sonnet meter.

Calculate required insulation thickness, DOE climate zone R-values, heat loss reductions, project costs, and payback periods for attics, exterior walls, and basements.

Calculate exact stoichiometric Carbon-to-Nitrogen (C:N) ratios, total pile moisture percentage, and brown-to-green volumetrics for hot composting.

Calculate exact pool volume and chemical doses for Free Chlorine shock, Muriatic Acid pH reduction, Baking Soda alkalinity, Stabilizer CYA, and Calcium Hardness.

Calculate exact continuous running watts and peak starting surge power for emergency home backup generators, transfer switches, and portable inverters.