Founder tools overview
Free Mini Apps, directory and newsletter trackers, backlinks, Compete, guides, and the weekly leaderboard — pick a tool to get started.
Landing page tools
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Free Website Grader
Free Lighthouse website grader. Instant score across speed, SEO, best practices and accessibility, with PageSpeed recommendations.
Analyze →Scored90/100
Overall score
Grade A
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Competitor Landing Page Analyzer
Paste a competitor's URL, add yours, and see title, meta, schema, social tags and stack side by side — so you know exactly what to fix.
Compare pages →Compared8/12
Checks you trail
Verdict Catch up
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Clone Competitor Page
Free clone competitor tool. Paste a competitor URL, copy their public website HTML, and remix the structure in Cursor or Claude with your brand. Free signup required.
Clone page →CapturedRaw HTML
Clone
Mode Raw HTML
SEO tools
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SaaS SEO Checklist for Founders
Free SaaS SEO checklist for founders. Paste your site, get a Critical / Important / Recommended plan — including a per-page on-page scorecard and AI search track.
Build my SEO plan →Interactive8
Tracks
Focus Founders
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SaaS SEO Agent Skills for Founders
Free SaaS SEO agent skills for founders. Paste your site and download a customized SKILL.md pack for Cursor, Claude Code, or ChatGPT — crawl, product-page, intent, authority, and AI visibility.
Build my skills pack →Interactive15
Skills
Focus Agents
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JavaScript SEO Checker
Free SPA shell checker. Paste your website to see if crawlers get real HTML or an empty JavaScript shell. No signup.
Check my site →CheckedSPA
Verdict
Crawlable Fail
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Free Sitemap & Robots.txt Validator
Free sitemap and robots.txt validator. Checks both files exist, the sitemap is well-formed, and robots.txt isn't silently blocking your own pages. No signup.
Validate →Checked5/7
Checks passed
Status Fix conflicts
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Free XML Sitemap Generator
Free XML sitemap generator. Paste a domain, we discover public URLs, and you download sitemap.xml to host at the root. No signup.
Generate sitemap →Generated24
URLs in sitemap
Status Ready to host
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Free llms.txt Generator
Free llms.txt generator. Paste a URL and download llms.txt, llms-full.txt, and llms-developers.txt for AI crawlers. No signup.
Generate llms.txt →Generated3
Files generated
Status Ready to host
Backlink tools
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Free Bulk Domain Authority Checker
Free bulk Domain Authority checker. Paste up to ten domains for DA, Page Authority, Spam Score and linking root domains. Free signup required.
Check Domain Authority →Checked72
Domain Authority
Scale 0–100
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Free Backlink Checker
Free backlink checker. Paste one domain for Domain Rating, referring domains, backlinks and spam score. Free signup required.
Check backlinks →Checked72
Domain Rating
Authority Strong
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Free Broken Link Checker
Free broken link checker. Paste a page and we check every link on it for 4xx, 5xx, timeouts and redirects. No signup.
Check links →Checked3
Broken links found
Health Needs fixes
Social OG tools
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Social Preview Checker
Free Open Graph / social preview checker. Paste a URL to see the og:title, og:description and og:image it will render as a share card on X, LinkedIn, Slack and iMessage. No signup.
Check my link →CheckedCard
Preview
Share-ready Pass
Reddit tools
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Subreddit Finder
Paste a product idea and get public subreddits where people already discuss the problem — sized for idea validation, not spam.
Find subreddits →Matched12
Subreddits matched
Best for Validation
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Subreddit Stats
Enter a subreddit to see member stats, how strict mods tend to be for founder posts, estimated weekly visitors, and similar communities.
Analyze subreddit →Matched10
Similar communities
Best for Research
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Share of Voice Tool
Free Reddit share of voice. Enter your site to see mention volume and top subreddits, or add up to 3 competitors for share and gaps. Free signup required.
Compare on Reddit →Compared42%
Your share of voice
Vs rivals Leading
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Reddit Best Time to Post Calculator
Free Reddit best-time-to-post calculator. Enter a subreddit for an estimated day/hour heatmap of when engagement is likely highest. No signup.
Get best times →EstimatedTue 3 PM
Top window (UTC)
Confidence Estimate
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Reddit Comment Sentiment Checker
Free Reddit comment sentiment checker. Paste a thread URL to see positive vs negative sentiment, common objections, and top quotes. No signup.
Check sentiment →Analyzed62%
Positive sentiment
Mood Mostly positive
X tools
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Free X Banger Meter
Free X banger meter. Paste your draft and get a 0–100 score plus feedback from published For You weights. No X login.
Score my draft →Banger78
/100
Tier Banger
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Free AI X People Search
Free AI X people search. Type a plain-English ask (SaaS founders over 10k, indie hackers, marketers) and get public X profiles. No login.
Find people on X →People10
Matches
Floor 10k+
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X Algorithm Checker
Free X algorithm scan. Sign up, enter a public handle, and we score the last 14 days of original posts against open For You weights via Launch Llama HQ.
Scan my account →Scanned110
Points a post
Mix Replies
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X Recap: Your Activity in Story Cards
Type a public X username. Launch Llama reads recent posts and turns them into cards: top mutuals, biggest fan, X personality, prime time, and more.
Make my recap →Ready10
Story cards
Format 9:16
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X Circle: Who You Talk With Most
Type a public username. We score who they reply to and who replies to them, then draw them in rings around the profile photo.
Make my circle →Drawn50
People in rings
Core Mutuals
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X Tier List: Wholesome Interaction Ranks
Type a public username. We score who they reply to and who replies to them (same as X Circle), then draw a shareable S–D tier list. Every row is positive.
Make my tier list →SortedS–D
Wholesome tiers
S tier Ride or Die
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X Time Machine: One Year Ago Today
Type a public username. We go back exactly one year and bring back the post that account wrote on this day, ready to share.
Go back one year →Found365
Days back
Mode Exact
Utilities
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Free Screenshot Privacy Blur
Free screenshot privacy blur for founders. Upload a Stripe or dashboard screenshot — we redact emails, money amounts, phones, and invoice IDs in your browser. No upload to our servers.
Blur sensitive info →On-deviceBlur
Sensitive fields
Privacy Local only
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Column to Comma Separated List
Free column to comma converter. Paste Excel or Sheets rows and get a delimited list with optional quotes and wrappers. Runs in your browser.
Copy list →Converteda, b, c
Delimited list
Format CSV
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Fake MRR Chart Generator
Free fake MRR chart generator. Pick start and target MRR, choose a growth curve, style the chart, and download a PNG. Runs in your browser. Synthetic data only.
Download PNG →Synthetic$39.2k
Mock MRR
Data Fake
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Free HTML Viewer
Free online HTML viewer. Paste HTML, CSS, and JavaScript and see it render instantly in a live sandboxed preview. Runs in your browser.
View HTML →RenderedLive
Rendered preview
Output Live
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Free Business Name Generator
Free AI business name generator. Describe your idea, filter by style or keyword, and save names you like. Free signup required.
Generate names →GeneratedNexora
Brandable name
Fit Strong
Launch planner
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Best Day to Launch on Product Hunt
Free Product Hunt best-day guide. See weekday heuristics, category windows, platform timing tips, and a launch countdown checklist. No signup.
View launch windows →HeuristicWed
Best weekday
Focus Timing
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Product Hunt Launch Checklist
Free Product Hunt launch checklist. Tick T-30 through T+1 tasks, self-check your page, and track a readiness score in your browser. No signup.
Build my checklist →Interactive72
Readiness
Phases 6
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Free Product Hunt Launch Planner
Free Product Hunt launch planner. Set your launch date, get a dated task list, and track progress in your browser. No signup.
Build my plan →PlannerT-7
Next milestone
Span 2 weeks
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Free Uneed Launch Planner
Free Uneed launch planner for founders. Set your launch date, get a dated action plan, and track progress in your browser. No signup.
Build my Uneed plan →PlannerT-5
Outreach ready
Span 2 weeks
Social copy tools
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Free Comment Generator
Free comment generator for LinkedIn, X, Instagram, and more. Paste one post, get five reply angles that sound human — not “great post!” spam. No signup.
Generate comment drafts →Drafts5
Reply angles
Tone Natural
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Free Evergreen Content Generator
Free evergreen content generator. Enter a topic and get timeless social posts you can schedule on repeat. No signup.
Generate evergreen posts →Evergreen10
Posts
Reuse 4–8 wks
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Free Brand Voice Generator
Free brand voice generator. Paste a brand description and get tone words, vocabulary rules, and a sample post. No signup.
Generate voice guide →Guide3
Tone words
Consistency On-brand
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Free Growth Strategy Generator
Free social growth strategy generator. Describe your niche and get content, engagement, and timeline tactics. No signup.
Generate strategy →Strategy90d
Plan
Focus Wedge
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Free Niche Generator
Free niche generator. Enter interests and skills to get focused niche ideas with audience and monetization angles. No signup.
Generate niches →Ideas10
Niches
Narrow Better
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Free Post Generator
Free social post generator. Enter a topic and get five platform-ready drafts with hooks and CTAs. No signup.
Generate posts →Posts5
Drafts
Tone Natural
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Free LinkedIn Caption Generator
Free LinkedIn caption generator. Enter a topic for thought-leadership captions with CTAs. No signup.
Generate LinkedIn captions →LinkedIn5
Captions
Format B2B
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Free X Caption Generator
Free X (Twitter) caption generator. Enter a topic for punchy drafts under 280 characters. No signup.
Generate X captions →X280
Char cap
Length Tight
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Free SaaS Teaser Generator
Free SaaS roadmap teaser generator. Describe an upcoming feature and get curiosity-building posts without fake dates. No signup.
Generate teasers →Hype5
Teasers
Dates None
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Free Aesthetic Bio Generator
Free aesthetic bio generator. Describe your vibe and get Unicode-styled bios for Instagram and TikTok. No signup.
Generate bios →Bios5
Styles
Look Aesthetic
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Free Best Posting Time Calculator
Free best time to post calculator for Instagram, TikTok, X, LinkedIn, YouTube, Facebook, and Pinterest. Times shown in your local timezone. No signup.
Show best times →Timing7–9a
Peak window
Signal High
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Free Bio Length Checker
Free bio length checker. Paste once and see Instagram, TikTok, X, LinkedIn, and more limits update live. No signup.
Check bio length →Limits9
Platforms
Fit Live
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Free Bold & Italic Text Generator
Free bold and italic text generator for Facebook, LinkedIn, and X. Convert text to Unicode fonts you can paste anywhere. No signup.
Style text →Unicode3
Styles
Paste Anywhere
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Free Tweet Mockup Generator
Free tweet screenshot-style mockup generator for presentations. Type the caption and preview a realistic tweet card. No signup.
Preview mockup →Preview1
Mockup
Use Ethical
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Free Line Break Generator
Free line break generator for Instagram, TikTok, LinkedIn, X, and Threads. Preserve spacing with invisible characters. No signup.
Fix line breaks →SpacingZWSP
Fix
Platforms 5+
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Free LinkedIn Post Formatter
Free LinkedIn post formatter. Write, preview, and copy within the 3,000-character limit. No signup.
Format post →LinkedIn3k
Char limit
Ready Copy
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Free Threads Post Formatter
Free Threads post formatter. Write, preview, and copy within the 500-character limit. No signup.
Format post →Threads500
Char limit
Ready Copy
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Free Meta Tag Generator
Free meta tag generator. Paste a title and description to get SEO, Open Graph, and Twitter Card tags. No signup.
Generate meta tags →HTMLOG
Tags
Limits 60 / 160
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Free QR Code Generator
Free QR code generator. Enter a URL or text, download a PNG. No signup.
Generate QR code →QRPNG
Download
Scan Ready
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Free URL Slug Generator
Free URL slug generator. Convert any title into a lowercase, hyphenated SEO slug. No signup.
Generate slug →URLseo
Slug
Clean Yes
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Free UTM Link Generator
Free UTM generator. Paste a destination URL and get a trackable link with sensible UTM defaults. No signup.
Generate UTM link →TrackUTM
Params
Analytics Ready
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Free X Photo Resizer
Free X photo resizer. Upload an image and download center-cropped PNGs for posts, headers, or profiles. No signup.
Resize for X →Resize1600
Post width
Privacy Local
Launch helpers
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Startup Tagline Generator
Free startup tagline generator. Describe your product, pick a style, and copy 10 taglines. No signup required.
Generate 10 taglines →Instant10
Taglines
Copy 1 click
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Product Description Generator
Free AI-style product description generator. Fill in a few details and get headline, one-liner, and body copy for directories and landing pages. No signup.
Generate description →Ready3
Copy blocks
Paste Anywhere
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Product Hunt Launch Post Copy Generator
Free Product Hunt launch post copy generator. Get tagline, first comment, short and long descriptions, and topic ideas. No signup.
Generate launch copy →PH-ready5
Sections
Paste PH
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Free AI Cold DM Generator
Free AI-style cold DM generator for launch outreach. Get PH hunter, X/Twitter, and user email templates with placeholders. No signup.
Generate 3 outreach messages →Outreach3
Templates
Tone Human
SaaS calculators
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Burn Rate Calculator
How long your cash lasts at the current burn, and the month it runs out — the date every other decision gets scheduled against.
Calculate runway →Calculated9 months, 1 week
Runway
Position Tight
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CAC Calculator
What it actually costs to win one customer. The input that lifetime value, payback and every paid channel decision depend on.
Calculate CAC →Calculated$500
Customer acquisition cost
Marketing spend $30,000 · Sales spend $20,000
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LTV Calculator
Whether a customer earns back what they cost, and how long that takes. CAC on its own cannot tell you either.
Calculate LTV:CAC →Calculated3.2 : 1
LTV to CAC ratio
Signal Healthy
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Churn Rate Calculator
How fast customers leave and what that does to average lifetime. Small churn improvements move lifetime value more than price changes do.
Calculate churn →Calculated3.0%
Monthly churn rate
Signal Healthy
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MRR Calculator
Where recurring revenue lands if the current growth rate holds — compounded month by month rather than added up.
Project MRR →Calculated$31,384
MRR in 12 months
Current MRR $10,000 · Monthly growth rate 10%
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SaaS Valuation Calculator
A defensible ARR-multiple range driven by growth and margin. Useful before a conversation about price, not instead of one.
Estimate valuation →Calculated$9,706,667 – $18,026,667
Estimated valuation
Annual recurring revenue $1,000,000 · Year-on-year growth 100%
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TAM SAM SOM Calculator
Market size built from customers and price rather than a slice of an analyst report, so every input is one you can defend.
Calculate market size →Calculated$60,000,000
Total addressable market
Potential customers worldwide 50,000 · Annual price per customer $1,200
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Startup Equity Calculator
What you still own once a priced round closes, what the investors take, and what the option pool quietly costs you.
Calculate dilution →Calculated48.00%
Your ownership after the round
Your ownership now 60% · Pre-money valuation $8,000,000
Sponsorship calculators
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Marketing ROI Calculator
What each customer from sponsorships costs, what they are worth, and whether the placements are worth buying again.
Calculate sponsorship LTV:CAC →Calculated3.2 : 1
LTV to CAC ratio
Signal Healthy
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CPM Calculator
Turn a newsletter advertising quote into effective CPM and CPC so you can compare placements before you buy.
Calculate sponsorship rates →Calculated$156
Effective CPM (opens)
Signal Expensive
Frequently asked questions
How do I check domain authority for free?
Is there a free backlink checker?
Where can I find a free business name generator?
What is TAM, SAM, and SOM?
How do I calculate customer acquisition cost (CAC)?
How do I calculate SaaS churn?
What is the best time to post on Reddit?
What is the X (Twitter) algorithm?
How do you calculate startup runway?
Directories & newsletters
Bigger founder tools that sit next to Mini Apps — directory submissions and newsletter sponsorship research.
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Launch directories
Free startup directory submission tracker. 610+ SaaS directories and launch platforms sorted by Ahrefs DR, with Done / Skip progress.
Open directory tracker →610+
Directories
DR-sorted · Done / Skip progress
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Newsletter ad sponsorship
Browse 300+ founder newsletters that accept sponsors. Filter by topic and audience before you book a slot or model CAC.
Browse newsletters →300+
Newsletters
Sponsors · topics · audiences