Check your vibe-coded app in 10 seconds.
42 instant utilities to audit stack, prompts, SEO, readability and speed no login, no wait.
Site Intelligence Scanner
Full stack, SEO & marketing scan for any URL.
Enter any website. We detect the CMS, hosting, analytics, payments, marketing stack, meta tags, and SEO gaps in one live scan.
Tech Stack Checker
Detect what a site is built with.
Paste any URL and see the frameworks, hosting, analytics, and fonts detected on the page.
Prompt Analyzer
Score any prompt for clarity and structure.
Paste a prompt and get a scored breakdown: role, task, context, examples, output format, and constraints.
SEO Checker
Instant on-page SEO audit.
Meta tags, title/description length, headings, canonical, Open Graph, JSON-LD all in one report.
Readability Scorer
How hard is your copy to read?
Compute Flesch, SMOG, and grade-level for any text. Get concrete rewrite suggestions.
LCP Quick Check
Estimate your Largest Contentful Paint.
Paste HTML and get an LCP hotspot estimate + a fix list for the top blockers.
Domain Check
Homepage, SEO & speed in one pass.
Paste a domain; get a title/meta/H1/canonical/OG audit, first-byte time, and AI-run fix recommendations.
Idea Validator
Validate your idea against Reddit, HN & forums.
Describe your idea. We search Reddit, Indie Hackers, Hacker News, Product Hunt and forums, then return a verdict, competitors, gaps and first moves with sources.
JSON-LD Schema Generator
Article, FAQ, Product, HowTo, Breadcrumb.
Generate valid schema.org JSON-LD in your browser. Six schema types, form-driven, copy-paste output. No signup, no server.
Meta Tag & OG Preview
Live preview across Google, X, LinkedIn.
See how your page renders in Google search, X (Twitter), LinkedIn, Facebook, and Slack before you ship. Instant, in-browser.
URL Slug Generator
4 SEO-optimized slug variants side-by-side.
Paste any title; get 4 SEO-friendly URL slugs with rationale for each. Stop-word stripping and character-length control.
JWT Decoder
Inspect header, payload, and expiry.
Paste any JWT to decode its header, payload, and standard claims. Runs entirely in-browser — safe for staging tokens.
AI Cost Calculator
Compare 11 frontier models by monthly spend.
Enter tokens per request and daily volume; see monthly cost across Claude, GPT, Gemini, Grok, DeepSeek and Llama ranked cheapest first.
Token & Context Counter
Tokens + % context used across 5 model families.
Paste text and see estimated tokens plus percentage of context window used across Claude, GPT, Gemini, Llama and DeepSeek.
Launch Checklist Generator
Ship-ready checklist tailored to your project type.
Pick your project type (SaaS, landing, extension, mobile, agent, directory) and get an interactive launch checklist exportable to Markdown.
Landing Copy Scorer
9-point audit of hero headline, subhead and CTA.
Paste your hero copy; get a conversion score with plain-English fixes for weasel words, outcome clarity, power words and CTA verbs.
robots.txt + Sitemap Generator
AI-crawler-ready robots.txt in one click.
Generate a clean robots.txt with explicit rules for 11 AI crawlers (GPTBot, Perplexity, Claude, Google-Extended…) plus a starter sitemap.xml.
Comparison Page Builder
Turn any competitor into a vs-page in 60 seconds.
Editable rows, live preview, exports to Markdown or HTML. Ships a launch-ready comparison table that ranks for '[you] vs [them]' queries.
Domain Brainstormer
40 domain ideas per seed word.
One seed → 40 candidates across .com, .ai, .io, .app, .dev, .co, .site, .xyz with reasoning + a one-click availability check.
Founder Focus Timer
Deep-work timer with a private session log.
15/25/45/60/90-minute presets, browser-only session log, daily and all-time totals. Nothing leaves your device.
Daily Prompt Randomizer
One high-signal prompt per day, 7 packs.
Rotates across idea validation, landing pages, pricing, cold outreach, SEO briefs, debugging and shipping accountability.
Pricing Table Snippet
3-tier pricing HTML + CSS in 60 seconds.
Edit three tiers, preview live, copy paste-ready HTML with brand-styled CSS. Drops into any static page — no framework needed.
Invoice Generator
Print-to-PDF invoices for freelancers & studios.
Fill in from/to, line items, tax and notes; print or save as PDF. No signup, nothing leaves your browser.
Keyword Clusterizer
Group a keyword list by intent for pillar SEO.
Paste up to a few hundred keywords; get topic clusters ranked by size. Perfect input for pillar-and-cluster planning.
Changelog Composer
Conventional commits → clean release notes.
Paste commit messages; get Keep-a-Changelog-shaped Markdown grouped into Added, Fixed, Performance and Docs.
Privacy & Terms Generator
Starter Privacy Policy + ToS in Markdown.
Company, URL, contact email and jurisdiction — get an opinionated Markdown v1 to hand to your lawyer. Not legal advice.
Waitlist Form Snippet
Framework-free waitlist HTML + CSS.
Ship a validated waitlist form in under a minute. Point it at Formspree, Getform, Basin or ConvertKit — copy the HTML and paste.
Public Roadmap + Votes
Kanban roadmap with upvotes, no backend.
Drag-free Kanban across Ideas / Planned / Shipping / Shipped with upvotes. LocalStorage-backed. Publish to Markdown anywhere.
OG Image Generator
1200×630 social card in your browser.
Design an Open Graph / Twitter card with 4 themes. Renders via Canvas — instant PNG download, no signup, no uploads.
Cold Email Breaker
10-check reply-rate audit for cold outreach.
Paste subject + body; get a score and fixes for spam words, subject length, fluff, CTA quality, and personalization.
Favicon Pack Generator
10 PNG sizes + head snippet from initials/emoji.
16 → 512 px favicons plus Apple touch and theme-color. Full <head> snippet included. Client-side canvas, no uploads.
RSS-to-HTML Embed
Turn any RSS feed into a paste-ready widget.
Framework-free, self-contained HTML widget powered by the free rss2json bridge. Great for footers, sidebars and blog rings.
Regex Tester
Live match highlighting + capture groups.
Test JavaScript regular expressions with live highlighting, flag toggles and capture-group inspection. Nothing leaves your browser.
UTM Link Builder
Tag launch links with 6 channel presets.
One-click presets for Twitter, LinkedIn, Reddit, Product Hunt, HN and newsletters. Know exactly what drove each signup.
Color Palette Generator
11-step scale + harmonies from one hex.
One brand color → full Tailwind-style scale plus complementary, analogous and triadic mates. Copy CSS custom properties.
Password Strength + Generator
Entropy, crack time & crypto-safe generator.
Rate any password against a 10B guess/sec offline attacker and generate a new one with crypto.getRandomValues. Offline only.
Reddit + HN Title Scorer
11-check title audit for upvotes.
Rate your launch or blog title against the patterns that actually drive HN and Reddit upvotes. Separate scores per platform.
Case Converter + Counts
12 transforms + word/char/line counts.
Sentence, Title, kebab, snake, camel, Pascal, CONSTANT, reversed and more. Every variant in one click.
Markdown Preview
Live GFM preview + HTML copy.
Paste Markdown; see it render in real time and copy clean HTML. Runs entirely in-browser via react-markdown.
Base64 / URL / Hex Encoder
4 formats, both directions.
Base64, Base64URL, URL-encoding and Hex — encode and decode in place. Client-side, private, no signup.
Image Compressor
WebP / JPEG compression in your browser.
Drop images; get compressed WebP or JPEG copies at any width. Nothing uploads. Perfect for landing page hero shots.
ID Generator
UUIDv4, nanoid, slug, Mongo ObjectId.
Bulk cryptographic IDs across 4 formats. Uses crypto.getRandomValues — never leaves your browser.
Describe your product in a sentence or two. We'll return the best AI builder, model, one starter prompt, and one perk to grab.