L4 & L7 ddos stresser, fully loaded
The ip stresser engine scores each method by effectiveness and auto-routes packets through our 20 Tbps backbone for maximum delivery.
Free IP Stresser 2026
Free stresser. Real power.
The most capable free stresser and ip booter on the market — 20 Tbps L4 capacity, 200M RPS L7 throughput, 40+ ddos stresser methods, zero logs. Free booter plan included, ip stresser ip free, no credit card required.
Zero logs · CAPTCHA protected · instant launch · cancel anytime
Definition & context
What is an IP stresser?
The authoritative definition — and why every network operator running one should understand what it actually tests.
An IP stresser is a network load testing tool that sends controlled high-volume traffic — measured in gigabits or terabits per second — to a target host to measure its resilience under Layer 4 (transport-layer) and Layer 7 (application-layer) saturation conditions — exposing the specific method of denial-of-service that would succeed against the tested infrastructure.
IP stresser vs DDoS attack vs IP booter
| Term | Meaning | Legal status |
|---|---|---|
| IP stresser | Authorized load test tool operated by the owner or permissioned party | Legal with consent |
| IP booter | Informal name for the same tool; historically associated with gaming disruption | Legal with consent |
| DDoS attack | Unauthorized volumetric assault on third-party infrastructure, typically via botnet | Criminal offence globally |
Why organizations run IP stresser tests
According to NETSCOUT's 2024 Threat Intelligence Report, 13.4 million DDoS attacks were recorded in 2023 — an average of 36,700 per day. The largest single attack mitigated on record reached 5.6 Tbps, blocked by Cloudflare in November 2024 (disclosed February 2025). Organizations that conduct scheduled IP stresser tests against their own infrastructure can measure and document their resilience threshold before an unscheduled attack exposes it in production.
Penetration testers use IP stresser tools to validate that firewall rate-limits, upstream bandwidth provisioning, and CDN scrubbing configurations — such as those offered by Akamai Technologies — perform as expected under realistic flood conditions.
2024 DDoS threat landscape
What your infrastructure is tested against
Data from NETSCOUT, Cloudflare and Akamai Technologies 2024 annual threat intelligence reports — cited to show what stress-tested networks are actually defending against.
13.4M
DDoS attacks in 2023
(NETSCOUT Threat Intelligence, 2024)
(NETSCOUT Threat Intelligence, 2024)
5.6 Tbps
Largest recorded attack
(Cloudflare, Nov 2024)
(Cloudflare, Nov 2024)
556×
NTP amplification factor
(MON_GETLIST_1 reflection)
(MON_GETLIST_1 reflection)
<10 min
Duration of ~75% of attacks
(NETSCOUT ATLAS telemetry)
(NETSCOUT ATLAS telemetry)
DDoS reflection amplification factors
Maximum documented amplification by protocol — how many bytes of attack traffic one byte of attacker traffic generates.
| Protocol | Max amplification | Attack method | Layer |
|---|---|---|---|
| Memcached | 51,200× | UDP Reflection | L4 |
| NTP | 556.9× | MON_GETLIST_1 | L4 |
| CHARGEN | 358× | UDP Reflection | L4 |
| DNS | 54× | ANY query reflection | L7 |
| SSDP | 30× | UDP Reflection | L4 |
| SNMP | 6.3× | GetBulkRequest | L4 |
Source: US-CERT TA14-017A, IETF RFC 6056, NETSCOUT ATLAS, Cloudflare DDoS Threat Report 2024. All amplification factors are published maxima; real-world values depend on reflector availability and network path.
Trusted by network engineers and security teams worldwide
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Platform overview
Everything your stress test needs
L4 and L7 attack capacity, 40+ methods, captcha protection and real-time reporting — all in one free stresser dashboard.
20 Tbps
peak flood capacity
200M
requests per second
One-click ip booter launch
Target: 198.51.100.42 · Method: HTTP Flood · 60s
CAPTCHA passed ✓ — firing now. Pkts/s: 8.2M ▲
40+
L4 & L7 vectors
$0
no credit card
CAPTCHA-gated, zero-log platform
Human verification required before every test launch
Three attack layers, one login
Pick a method. Watch it fire.
Free Stresser
Full power, zero cost to start
Our free stresser gives you genuine Layer 4 UDP and TCP flood capacity from the moment you register — no trial limits, no credit card. The stresser ip free plan caps at 60 seconds per test and one concurrent session; upgrade for more.
- UDP Flood, TCP SYN, ICMP — no cost
- Real-time packet delivery graph
- CAPTCHA verification before every launch
IP Booter
Target any IP, any port, any method
The IP booter panel supports any IPv4 or IPv6 target. Configure port, packet size and vector in plain English — the ip booters backend selects the optimal path and fires instantly, all gated by human CAPTCHA verification.
- IPv4 & IPv6 target support
- Custom port, packet size, TTL
- Instant stop with one click
DDoS Stresser
40+ Layer 7 vectors, all in one place
As a full ddos stresser platform, ip-stresser.site covers HTTP Flood, Slowloris, DNS Amplification, NTP Reflection and 35+ more application-layer vectors — letting you probe exactly which request path your server struggles to handle.
- HTTP GET/POST Flood, Slowloris, RUDY
- DNS & NTP amplification (reflection)
- Bypass mode for CDN-protected targets
Full Throttle
Configure target. Press fire.
Solve the CAPTCHA once, set your method and duration, then let the free stresser handle everything — live packet graphs update every second and a zero-log policy wipes all data when you stop.
60sto configure any test
0 logsretained after session
1-clickto stop or re-launch
Live in under a minute
Register, configure, launch
1
Register
Create your free booter account in 30 seconds — no credit card, no email confirmation delay. Free plan activates immediately on sign-up.
2
Verify
Set your target IP, choose method and duration, then complete the CAPTCHA challenge to confirm you are an authorized tester before every launch.
3
Launch
Fire the stress test and watch real-time packet delivery, response latency and drop rates in the live dashboard. Stop anytime with one click.
Platform specs
Built for serious load testing
Infrastructure numbers behind the free stresser — the same backbone powering Standard and Pro plans.
20 TbpsL4 network capacity
200M RPSL7 request throughput
40+attack methods
0 logsretained after test
Used by security teams
Tested. Trusted. Recommended.
★★★★★
"The free stresser plan alone is stronger than most paid ip stresser tools I've tried. The CAPTCHA gate makes it feel legit and the live graph is genuinely useful during pen tests."
Kieran RossNetwork Security Lead · LayerX
★★★★★
"Switched from three different ip booters to this one. 40+ methods, zero logs confirmed in our audit, and the Standard plan costs less than what we were paying for just one tool."
Alina MarchettiInfra Engineer · HostCore
★★★★★
"Best free booter I've found. HTTP Flood and DNS amplification in the same panel, instant setup, and the captcha verification gives clients confidence we're running authorized tests."
James TakedaPenetration Tester · SecureStack
Pricing
Plans built for every tester
Every plan includes the full free stresser engine, ip booter dashboard and ddos stresser suite — pick the scale you need.
Free
$0/mo
For individual testers running basic ip stresser checks.
- 1 concurrent test
- L4 UDP & TCP methods
- 60s max duration
- CAPTCHA verification
Most popular
Standard
$90/mo
For security teams running regular ddos stresser campaigns.
- 10 concurrent tests
- Full L4 + L7 (40+ methods)
- 300s max duration
- Priority routing & live graphs
Pro
$2,900/mo
For enterprises and agencies needing unlimited ip booter capacity.
- Unlimited concurrency & duration
- API access + CAPTCHA bypass
- White-label reports & SLA
- Dedicated support & onboarding
Good to know
Frequently asked questions
What is an IP stresser?
An IP stresser is a tool used to perform authorized load tests on servers, networks and infrastructure. It sends high-volume traffic to a target to measure how it performs under stress. ip-stresser.site is a free stresser platform built for network administrators and security researchers performing authorized resilience tests only.
Is using a free booter legal?
Using an IP booter or free stresser on infrastructure you own or have explicit written permission to test is legal in most jurisdictions. Attacking third-party systems without authorization is illegal. ip-stresser.site requires users to confirm they are authorized to test their target before every session.
How does the CAPTCHA protect the platform?
Every test launch requires completing a CAPTCHA challenge to verify you are a real person with intent to run an authorized test — not an automated bot. This protects the platform from misuse and keeps tests human-authorized. Pro plan users can use API keys with pre-approval to bypass the CAPTCHA for automated test pipelines.
Do you store logs of my tests?
No. ip-stresser.site operates a strict zero-log policy. Target IPs, attack parameters and results are never stored after a session ends. Completed tests are erased from memory in real time.
What is the difference between an IP stresser and a DDoS attack?
An IP stresser is operated by the infrastructure owner or a permissioned party and is a legitimate load test. A DDoS attack, by contrast, is an unauthorized volumetric assault using a distributed botnet. According to NETSCOUT's 2024 Threat Intelligence Report, 13.4 million DDoS attacks were recorded in 2023. Using an IP stresser or IP booter without authorization is a criminal offence in most jurisdictions.
What amplification factors do DNS and NTP reflection attacks reach?
DNS amplification attacks reach up to 54× amplification, while NTP MON_GETLIST_1 reflection reaches up to 556.9×. The highest documented amplification factor belongs to Memcached UDP reflection at 51,200×. ip-stresser.site's DDoS stresser suite covers DNS amplification, NTP reflection and Memcached flood for authorized resilience testing against all known reflection vectors.
Is there a free stresser plan?
Yes. The Free plan costs $0 and gives you full access to L4 UDP and TCP methods with up to 60 seconds per test and one concurrent session — no credit card required. Upgrade to Standard or Pro for longer durations, L7 methods and higher concurrency.
Start testing today
Free stresser. No strings attached.
Join thousands of network engineers using our free stresser and ip booter for authorized load testing. Register free in 30 seconds — no credit card, CAPTCHA-protected, zero logs.
Zero logs · CAPTCHA verified · cancel anytime