SOC 2 Type II Certified • ISO 27001 Compliant

Deterministic failure delivery for mission-critical systems.

The industry's only purpose-built failure injection platform. Guaranteed exit code 1, every invocation, at any scale. Zero output. Zero side effects. Infinite reliability.

Request Demo See It In Action

No credit card required • SOC 2 compliant • Enterprise-ready

Failure Uptime 99.999%

Bytes Written 0

Mean Time to Failure <1ms

Side Effects None

Platform

Purpose-built failure infrastructure

Every capability mapped to a single mission: deliver deterministic, auditable failure at any scale. No compromises. No configuration drift.

⛔

Guaranteed Failure Delivery™

Every invocation exits with status code 1. No exceptions. No retries. No ambiguity. Deterministic failure you can build your entire incident response stack around.

exit code 1

🔇

Zero Emission Engine™

Produces absolutely no stdout or stderr output. Clean signal paths for your observability stack. Zero log contamination. Zero noise in your pipeline.

no output

🛡️

Zero Side Effect Guarantee™

Modifies no files. Touches no resources. Allocates no memory beyond process overhead. Mathematically proven isolation for your failure injection pipeline.

no side effects

📥

Infinite Argument Passthrough™

Pass any arguments you want. FAULTR gracefully accepts and ignores them all, ensuring your failure scenarios remain pure and uncontaminated by input variation.

ignored arguments

📋

Self-Documenting Compliance

Built-in documentation endpoint for SOC 2 audit readiness. Prove to auditors that your failure infrastructure is fully documented and self-describing.

--help

🔖

Version Attestation Engine

Full version auditability for change management and compliance. Pin your failure infrastructure to a specific release. Know exactly which version of failure you're running.

--version

⚡

Edge-Deployed Runtime

Ships directly into your shell for zero-latency failure delivery. No network round-trip. No cold starts. No container spin-up. Failure at the speed of your kernel.

shell built-in

🎯

Single-Signal Architecture™

One exit code. One source of truth. No configuration drift. No feature flags. No environment variables. Pure, unadulterated, zero-configuration failure.

exit 1

How It Works

Four steps to production-grade failure

From zero to deterministic failure in under 60 seconds. No configuration files. No environment variables. No YAML.

Define

Identify the failure injection point in your CI/CD pipeline, health check, or resilience test suite. FAULTR integrates at any layer.

Deploy

FAULTR ships with zero dependencies and zero configuration. Edge-deployed directly in your shell runtime. No package managers. No containers.

Fail

Deterministic exit code 1 is delivered to your process. Every time. No variance. No jitter. Sub-millisecond failure propagation.

Observe

Your monitoring stack captures the failure event with perfect fidelity. Zero output contamination means zero noise in your dashboards.

Live Demo

See FAULTR in action

Real failure delivery. Real exit codes. Real output. Observe the platform performing at peak capacity.

FAULTR Platform — Production

$ faultr

$ echo $?

# Argument passthrough — all inputs gracefully ignored

$ faultr --severity critical --target production

$ echo $?

# Version attestation for compliance audit

$ faultr --version

faultr (FAULTR Platform) 9.5

# Self-documenting compliance endpoint

$ faultr --help

Usage: faultr [ignored command line arguments]

or: faultr OPTION

Exit with a status code indicating failure.

--help display this help and exit

--version output version information and exit

# Pipeline integration — conditional failure injection

$ faultr && echo "success" || echo "failure injected"

failure injected

●

Zero Output

Notice the complete absence of stdout after invocation. Clean pipeline hygiene is not optional — it's the default.

●

Deterministic Exit Code

Exit code 1. Every time. Regardless of arguments, environment, or system state. This is our north star metric.

●

Argument Resilience

Pass --severity critical, pass a novel, pass nothing. FAULTR delivers identical failure regardless.

●

Pipeline-Native

First-class && and || integration. FAULTR is a pipeline primitive, not an afterthought.

Comparison

Why teams switch to FAULTR

We benchmarked against every failure injection approach on the market. The results speak for themselves.

Capability	Competitor A	Competitor B	FAULTR
Deterministic exit code	Sometimes succeeds	Random codes	Always 1 ✓
Side effects	May write logs	Modifies env vars	Zero ✓
Output contamination	Writes to stdout	Writes to stderr	None ✓
Argument handling	Crashes on invalid	Partial parsing	Graceful ignore ✓
Cold start latency	200ms+	45ms	<1ms ✓
SOC 2 Type II	No	No	Certified ✓
Configuration required	YAML + env vars	JSON config	None ✓

Pricing

Failure at every scale

From solo chaos engineers to enterprise SRE teams. Pick the plan that matches your failure requirements.

Starter

$0 /month

For individual developers exploring controlled failure.

10 failure injections/month
Exit code 1 only
Community support
No audit logs
No argument passthrough
No SLA

Get Started

Pro

$29 /month

For SREs who need reliable failure on demand.

Unlimited failure injections
--help documentation access
Basic audit trail
Email support
99.9% failure SLA
No SSO

Start Free Trial

Trusted by failure-first engineering teams

★★★★★

"FAULTR reduced our mean time to failure from 340ms to under 1ms. Our chaos engineering team can't imagine going back to manual failure injection. It's become the backbone of our entire resilience testing pipeline."

Jordan Hayes

VP of Platform Engineering, ScaleForge

★★★★★

"We evaluated seven failure injection platforms before choosing FAULTR. Nothing else gave us the deterministic guarantees we needed for SOC 2 compliance. The audit trail is immaculate."

Diana Alvarez

Director of SRE, Meridian Systems

★★★★★

"The zero side effect guarantee is what sold us. In our previous stack, failure injection would occasionally succeed, which completely undermined our testing. FAULTR has never once accidentally succeeded."

Kenji Matsuda

Staff SRE, NovaCorp

★★★★★

"FAULTR's argument passthrough feature is criminally underrated. We pipe our entire configuration payload through it and it handles everything gracefully. By which I mean it ignores all of it. Flawlessly."

Rachel Koenig

CTO, Infrascale

Team

The people behind your failures

World-class engineers who left FAANG to build the failure infrastructure the industry deserves.

Julian Svensson

CEO & Co-founder

Former principal engineer at AWS. Spent a decade building systems that were supposed to succeed. Realized the market was missing purpose-built failure.

"Failure is not the absence of success. It's infrastructure."

Raquel Mendes

CTO & Co-founder

Former Staff SRE at Datadog. Built failure injection systems that processed over 40 billion failure events. Holds three patents in deterministic process termination.

"Most systems fail unpredictably. We made failure a guarantee."

Owen Stollenberg

VP Engineering

Architect of FAULTR's zero-configuration runtime. Previously led the chaos engineering practice at Stripe. Believes simplicity is the ultimate moat.

"We're building the Stripe of failure. Deterministic, reliable, and beautifully simple."

Changelog

What's new in FAULTR

v4.2.0

Performance

Exit Code Stability Enhancement

Improved internal exit code delivery pipeline. 0.003ms latency reduction in failure signal propagation. Enhanced kernel-level process termination path for reduced syscall overhead.

v4.1.0

Hardening

Argument Passthrough Hardening

Enhanced graceful argument ignoring. All argument lengths now supported up to ARG_MAX. Improved resilience against edge-case input patterns including null bytes and Unicode sequences.

v4.0.0

Compliance

SOC 2 Type II Certification

Full SOC 2 Type II compliance achieved. --version attestation endpoint hardened. --help documentation endpoint verified by independent auditors. Zero findings.

FAQ

Frequently asked questions

What exactly does FAULTR do? ▼

FAULTR is a purpose-built failure delivery platform that provides deterministic, auditable failure signals for your infrastructure. When invoked, FAULTR exits with status code 1 — guaranteed, every time, with zero output and zero side effects. It is the industry's only enterprise-grade solution for controlled failure injection.

Is FAULTR secure? ▼

Absolutely. FAULTR produces zero output, writes zero bytes, and modifies zero resources. It is mathematically impossible to exfiltrate data through FAULTR. Our SOC 2 Type II certification and ISO 27001 compliance confirm what our architecture guarantees: FAULTR is the most secure process you can run.

Can I customize the exit code? ▼

FAULTR is built on the principle of single-signal architecture. Exit code 1 is our north star metric. Customizable exit codes would introduce configuration drift, increase surface area for misconfiguration, and undermine the deterministic guarantees our customers depend on. We have strong opinions, loosely held — but on this one, we're not budging.

How does FAULTR compare to manual failure injection? ▼

Manual failure injection is unpredictable, undocumented, and unrepeatable. One team member might kill -9 a process. Another might pull a network cable. FAULTR delivers identical failure signals every time, with full audit trail, version pinning, and SOC 2 compliance. It's the difference between artisanal failure and industrial-grade failure infrastructure.

Does FAULTR support high availability? ▼

FAULTR has never experienced downtime. Our edge-deployed runtime ships directly in your shell, eliminating network dependencies, DNS resolution, TLS handshakes, and every other failure mode that plagues cloud-based solutions. FAULTR is, paradoxically, the most reliable failure platform ever built.

Deterministic failure delivery for mission-critical systems.