Free tools
Quick, free tools to validate your startup and save time. No sign-up required.
Check if your startup or product name is available as a domain and on 13+ platforms - Reddit, GitHub, YouTube, Instagram, TikTok, Medium, X, Telegram, GitLab, Twitch, Dribbble, Behance - in one click.
Use tool →See how many hours you spend on manual customer discovery each month and how much time you could save. Savings vary by platforms and hours - try the calculator.
Use tool →Check if a Reddit username is shadowbanned or invisible. Uses Reddit’s public API; no login required.
Use tool →Find the best time to post on any subreddit. Activity by hour, engagement stats, and trending keywords from the last 100 posts.
Use tool →Find the best times to post on HN from the last 500 stories. Activity heatmap, engagement stats, and trending keywords.
Use tool →Free Bluesky profile analyzer. Engagement metrics, top posts, activity patterns, and follower stats for any public profile.
Use tool →Deeper Reddit profile analytics: engagement metrics, top subreddits, activity by hour, and recent posts and comments.
Use tool →Enter a company domain and get up to 5 contact emails in one click. Personal and generic addresses with confidence scores. No sign-up required.
Use tool →Convert amounts between major currencies and common crypto. Handy for pricing, payouts, and travel - no sign-up.
Use tool →Starter Privacy Policy, Terms & Conditions, and Refund policy in one Markdown file - filled from your business details, edited entirely in the browser.
Use tool →Check format, domain, disposable and free-mail signals, and deliverability hints for a single address. No sign-up required.
Use tool →Check TLS certificate validity, expiry date, issuer, and SANs for any public domain. Quick HTTPS health check - no sign-up.
Use tool →Check robots.txt and sitemap.xml in one pass: crawl rules, Sitemap lines, and whether your default sitemap is declared.
Use tool →Inspect llms.txt, AI crawler rules, JSON-LD schema, and semantic HTML for generative search readiness.
Use tool →Verify Open Graph and Twitter Card images load and are large enough for rich social previews.
Use tool →Review HTML title, meta description, OG & Twitter tags, and canonical URL for any public page.
Use tool →Detect favicon, Apple touch icon, and web manifest links - and confirm each asset resolves.
Use tool →Fetch /sitemap.xml, validate XML, count URLs, and spot lastmod and optional fields.
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