FLOOD
New Bulk newsletter subscriptions — automated

Fill your inbox with purpose. Automatically.

Subscribe to hundreds of curated newsletters in one click. Warm your email, research competitors, train your filters, or test your tools — all on autopilot.

Start Free

Free forever — no credit card required

🔥 Inbox Warming· 🕵️ Competitor Research· 🏷️ Filter Training· 🧪 Dev Testing· 💰 Finance· 🤖 AI & Tech· 📈 Marketing· ₿ Crypto·
🔥 Inbox Warming· 🕵️ Competitor Research· 🏷️ Filter Training· 🧪 Dev Testing· 💰 Finance· 🤖 AI & Tech· 📈 Marketing· ₿ Crypto·
8
Curated niches
250
Max per run
2
Quality modes
30s
Time to subscribe
Why InboxFlood
Four reasons to
flood your inbox.

Not just newsletters. A strategic inbox tool used by marketers, developers, and growth professionals.

01
🔥
Warm your email inbox

Receiving legitimate newsletters makes your account look active and human — improving deliverability when you send outreach or marketing emails.

  • Avoid spam classification on cold outreach
  • Build domain reputation passively
  • Works on Gmail, Outlook, custom domains
02
🕵️
Competitive research at scale

Subscribe to competitor newsletters simultaneously. Track trends, offers, copywriting styles, and funnels — all in one inbox.

  • Monitor entire competitor landscape
  • Track promotional strategies and offers
  • Study subject lines and funnels
03
🏷️
Email filter training

Train Gmail and Outlook smart filters faster by generating large volumes of real email data. Build reliable labels that actually work.

  • Speed up Gmail smart filter learning
  • Create smart labels: promo / important / junk
  • Test Outlook rules on real traffic
04
🧪
Testing email tools

Generate real email traffic for testing inbox parsers, spam detection, and automation tools — without writing a single mock.

  • Test parsers with real newsletter content
  • Train spam detection on real data
  • Benchmark email automation tools
How it works
Three steps.
That's all.
Step 01
Enter your email

Provide the email you want newsletters delivered to. We never use it for our own marketing.

Step 02
Pick niche and volume

Choose from 8 curated categories. Set how many newsletters you want and pick your quality mode.

Step 03
We handle everything

InboxFlood runs automatically in the background. Newsletters arrive in your inbox within hours.

Get started
Ready in
30 seconds.

Enter your email, pick your niche, and let InboxFlood handle the rest — automatically.

🎲 Discovery mode free ✨ High-quality on Pro 8 niches Free forever
Ready
10newsletters

Free plan · 10 newsletters · No credit card required

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Submitting subscriptions
Verifying completions
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Subscribing to 10 newsletters
0 / 10 completed
🎉
Inbox flooded.

Newsletters are on their way.
Check your inbox in a few hours.

Pricing
Simple, honest pricing.
Starter
$0
forever free
  • 10 newsletter subscriptions / month
  • Discovery mode included
  • Email confirmation
  • Niche selection
  • High-quality mode
  • Priority processing
  • Monthly auto-refresh
Most Popular
Pro
$19
per month
  • 100 newsletter subscriptions / month
  • All 8 niches available
  • Email confirmation
  • Niche selection
  • High-quality mode
  • Priority processing
  • Monthly auto-refresh
Unlimited
$49
per month
  • Unlimited subscriptions / month
  • All 8 niches available
  • Email confirmation
  • Niche selection
  • High-quality mode
  • Priority processing
  • Monthly auto-refresh

Ready to flood
your inbox?

Join thousands of marketers, developers, and growth professionals
using InboxFlood to work smarter with their inbox.

Get Started Free →