Useful tools and websites for developersbuilders
Browse a tightly edited directory of products, workflows, and references for makers. Run focused utilities when you need a fast answer.
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Concrete Estimator Hub
· UtilitiesConcrete calculators for yards, bags, cost, and quote checks.
Mappit
The world's zeitgeist, on a map.
Arnis
· UtilitiesFree Minecraft world map generator from realworld maps.
Omentir
· MarketingOmentir helps founders find and contact their next customers on LinkedIn, automatically.
Top Incremental Games
· DirectoryThe curated directory for the best incremental, idle & clicker games.
Grams in a Pound
· UtilitiesFree pounds to grams converter using the exact 453.59237 g per pound formula.
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GEO & LLM Site Analyzer
· SEOCheck if your website is optimized for AI search engines like ChatGPT and Perplexity (checks llms.txt, robots.txt, and schema).
Complete Meta Check
· SEORun one complete check for metadata, canonical tags, robots.txt, and sitemap signals.
URL Parameter Generator
· MarketingBuild clean tracked links with UTM parameters for campaigns, newsletters, ads, and social posts.
JSON Formatter & Validator
· DeveloperClean, format, and validate messy JSON data instantly. All processing is done locally in your browser for privacy.
JSON Schema Generator
· DeveloperConvert JSON data into a valid JSON Schema instantly. Perfect for defining structured outputs for AI agents, LLMs, and API documentation.
Universal File Converter
· DeveloperConvert images, data, and documents between formats locally in your browser. Supports WebP, PNG, JPG, JSON, CSV, and more with 100% privacy.