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  • Guides index
  • Bluesky Customer Discovery Guide for B2B Founders (2026)
  • The Complete Customer Research Methodology for Startups
  • How to Find Your First 100 Customers for a Startup (Proven Platforms, Tools & Strategies)
  • GitHub Customer Discovery Guide for Dev Tools & Open Source
  • Hacker News Playbook for Founders: Show HN, Ask HN, and Customer Discovery
  • How to Launch on Product Hunt: A Research-Led Playbook for Founders
  • Multi-Platform Customer Discovery: A Repeatable Workflow
  • Complete Reddit Customer Discovery Playbook: Find Customers in 2026
  • Technical SaaS Checklist: Things You'll Regret Not Doing Early
  • Stack Overflow Customer Discovery Guide for API & Dev Tools
  • Startup Site Health Checklist: SSL, Meta, OG, Sitemap & AI Crawlers
  • Blog index
  • 5 Buying Intent Signals You're Probably Missing Right Now
  • AI Visibility Audits: What Founders Can Actually Change This Quarter
  • How to Mine “Alternatives to X” and “Switching From Y” Threads for Growth
  • API and Infra Tools: Stack Overflow + GitHub for Product Research
  • B2B SaaS GTM Tools: Acquisition, Activation, Retention
  • Best Startup Launch Directories for SaaS (Curated Stack for 2026)
  • Bluesky for Founders: How to Read an Audience With Free Analytics
  • Bluesky vs X (Twitter) for B2B Signal: A 2026 Snapshot (Verify Live)
  • Conversation Demand vs SEO Content: What to Work on First
  • Customer Discovery and Marketing for Early-Stage Startups: What We've Learned
  • Weekly Customer Discovery Workflow (Mon–Fri SOP for Solo Founders)
  • Dev Tool GTM: Reading GitHub Issues and Mentions Without Annoying Maintainers
  • Early Adopter Outreach: Best Practices with Needle
  • Early-Stage SaaS Marketing Stack Under $200/mo (2026)
  • The Power of Emotional Context in Market Research
  • Finding Your People: The Founder Mental Load and the Needle × Lyncbuild Playbook
  • Founder-Led Outbound After Community Research (Handoff SOP)
  • Hiring Your First Growth Hire: Interview Tasks for “Signal Literacy”
  • Indie Hackers & Product Hunt: A Practical Early-Traction Map for Builders
  • Intent Signals Before Apollo: A Lean Outbound Research Stack
  • High-Converting Landing Pages: What 300+ Top Performers Have in Common
  • llms.txt, AI Crawlers, and GEO: A Practical Guide for Startup Sites
  • Lobsters vs Hacker News: Culture, Flags, and Research Etiquette
  • Mastodon and the Fediverse: Market Research Cautions for B2B Teams
  • Micro-SaaS Distribution: One Niche, Three Communities
  • RFP-Free “Enterprise Discovery”: What Mid-Market Buyers Say in Public
  • How to Monitor Trending Problems to Validate Startup Ideas (2026)
  • How to Submit Your SaaS to Needle Directory (Requirements & SEO)
  • Open Source Metrics vs Community Sentiment (Commercial OSS GTM)
  • PMF Interviews vs Community Evidence: When Each Misleads You
  • How to Write Positioning from Real Phrases (Not Generic AI Copy)
  • Pre-Launch Lead Generation: Find High-Intent Leads Before You Launch
  • Pre-Launch Waitlist Validation Using Public Threads Only
  • Pre-PMF User Discovery: Find Users Before You Build
  • Product Hunt Research Without Launching (Comments, Makers, Categories)
  • How Product Managers Should Triage Community Signal in One Hour
  • Reddit vs Hacker News vs Stack Overflow for B2B Discovery (“Best For” Map)
  • Reddit Rules 2026: Research and Outreach Compliance Checklist (Not Legal Advice)
  • Reddit Shadowbans and Customer Outreach: What Founders Should Know
  • Security SaaS: A Practical Checklist of Communities to Scan First
  • How 3 Founders Used Social Listening to Go from 0 → 100 Users
  • Social Listening for SaaS: How to Find Users Asking for Your Product
  • Social Listening for Lead Generation: How to Find Buyers Who Are Already Looking for You
  • Social Listening for Startups vs Enterprise Tools (Brandwatch, Sprout, etc.)
  • Social Listening vs Surveys vs User Interviews: When to Use Each
  • Startup Name & Brand Availability: Domain, Social Handles, and Search
  • The Ultimate Marketing Guide for Founders: How to Find Your First Users and Grow Without a Budget
  • The Validation Trap: We Were Both Looking for Permission That Was Never Coming
  • When Research Becomes Avoidance: How to Know When You Have Enough Signal to Act
  • Willingness to Pay: Phrase Patterns That Look Like WTP (But Aren’t)
  • Willingness to Pay: How to Spot Budget and Urgency in Public Conversations
  • YouTube Comments as Research: When They’re Signal vs Noise
  • What is Needle?
  • Who is Needle for?
  • Getting started with Needle
  • Guide: Find your first customers with Search
  • Troubleshooting
  • Plans and limits
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  • Guide: Validate your idea with Trending Problems
  • FAQ
  • Buyer-Intent Search - Finding Customers in Public Communities
  • Search (Manual & Auto)
  • Competitor Mention Tracking & Switching Intent
  • Trending Problems
  • LLM overview
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Needle

Buyer-intent search across Reddit, Hacker News, Stack Overflow, GitHub and 10+ public communities.

Ask an AI about Needle

Same comparison prompt in each assistant - useful for due diligence and discovery.

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  • Find your first 100 customersCommunity-led acquisition without ads
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  • How to launch on Product HuntResearch-led launch playbook for founders
  • Multi-platform searchWhy one query beats tab-hopping
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  • Buyer-Intent Search - Finding Customers in Public Communities
  • Competitor Mention Tracking & Switching Intent
  1. Home
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PlatformsSearch coverage

Where your customers already talk

Needle searches 13 public communities in one workflow - with buying intent and sentiment on every result. Pick a platform to see who uses it, what signal looks like, and how to search ethically.

How Search worksPlans & platform access

All platforms

Click a card for audience data, example searches, and etiquette.

Reddit logo

Reddit

Honest, unfiltered problem talk in thousands of niche communities.

Daily active users

127M

Explore platform

Hacker News logo

Hacker News

Blunt technical discourse, launches, and founder peer feedback.

Monthly uniques (est.)

5–12M

Explore platform

Stack Overflow logo

Stack Overflow

Precise technical failure modes and API confusion at scale.

Monthly visits (est.)

~42–55M

Explore platform

GitHub logo

GitHub

Where developers file issues, debate tools, and compare open-source options.

Developers

180M+

Explore platform

YouTube logo

YouTube

Tutorial frustration, product comparisons, and review sentiment in comments.

Monthly active users

2.7B+

Explore platform

X logo

X

Real-time takes, launch reactions, and fast-moving industry chatter.

Monthly users (est.)

300M+

Explore platform

LinkedIn logo

LinkedIn

Professional posts where B2B buyers discuss tools, hiring, and vendor decisions.

Members (reported)

1B+

Explore platform

Bluesky logo

Bluesky

Decentralized microblogging with a growing tech and news crowd.

Registered users

43M+

Explore platform

Lobsters logo

Lobsters

Invite-driven tech link aggregator with curated, high-signal discussion.

Community model

Invite-only

Explore platform

Mastodon logo

Mastodon

Fediverse microblogging across independent servers and communities.

Monthly active (est.)

2–3M

Explore platform

Tumblr logo

Tumblr

Creative communities, fandoms, and personal storytelling.

Monthly users (est.)

300M+

Explore platform

Forums logo

Forums

Product and builder communities where people compare tools and ask for recommendations.

Coverage

Curated hosts

Explore platform

Product Hunt logo

Product Hunt

Early adopter feedback, comparison discussions, and launch comments.

Monthly active visitors

30M+

Explore platform

Jump to

  • Reddit
  • Hacker News
  • Stack Overflow
  • GitHub
  • YouTube
  • X
  • LinkedIn
  • Bluesky
  • Lobsters
  • Mastodon
  • Tumblr
  • Forums
  • Product Hunt

Platform pages include audience stats, example searches, and etiquette.