shouldiuse.io

VERDICT

Should I use HAProxy?

Reliable, High Performance TCP/HTTP Load Balancer - haproxy.org

Depends. A buy for engineering teams running serious traffic who are comfortable with config files and patching. Skip it if you want a managed, GUI-driven load balancer — your cloud provider's built-in option is simpler.

Confidence

Medium. Based on ~20 public sources. No user review ratings, named customers, or public enterprise pricing found in the sources reviewed.

Ratings

  • Value for money
  • Ease of use
  • Feature depth
  • Support qualityNo support evidence in reviewed sources
  • Security posture

Pricing

$0

Community (open source)

ModelNot disclosed
Monthly feesNot disclosed
HardwareNot disclosed
Free tierYes
HAProxy EnterpriseNot published in reviewed sources

Best for

  • High-traffic web infrastructure
  • Teams with in-house ops skills
  • TCP and database load balancing
  • Cost-sensitive scaling

Not for

  • Non-technical teams wanting a dashboard
  • Anyone wanting a fully managed cloud LB
  • Small sites with one server — use your host's balancer
  • Teams that won't track security patches

Gotchas - check before you buy

high

Multiple HTTP request-smuggling CVEs disclosed 2023–2024; patch promptly

medium

HAProxy Enterprise is sold separately; no public pricing in reviewed sources, expect sales contact

medium

Guess: no vendor hand-holding on free tier; budget for ops expertise or paid enterprise support

Pros and cons

Pros

  • Free, very fast, reliable reverse proxy for high availability
  • Handles both TCP and HTTP (L4/L7) load balancing
  • Called the most stable, configurable L4/L7 load balancer
  • Outperformed rivals in a published comparison test
  • Strong community plus abundant setup guides and docs

Cons

  • Open-source core means you self-manage and self-support
  • Recurring version-specific vulnerabilities require prompt patching
  • Guess: steeper learning curve than GUI rivals like Traefik

Sources & method

Analyzed 9/20/2026 - 10 sources - Mature, actively patched open-source project; several CVEs disclosed 2023–2024, including one critical (CVSS 9.1, patched).

official x2review x5security x2news x1
  • CVE-2023-25725 — critical HTTP request smuggling, Rated critical (CVSS 9.1); marked as patched.
  • HTTP request/response smuggling (2024 advisory), Affected HAProxy version 3.0.3; vendor issued fixes.
  • HTTP request/response smuggling (2023 advisory), Affected HAProxy version 2.6.8.

Key stats

  • Value for money: 5/5

    Rating

  • $0

    Starting price

  • 10

    Sources

  • Analyzed

  • Value for money: 5/5. Free open-source core; enterprise optional
  • Ease of use: 2/5. Guess: config-file driven, no built-in GUI
  • Feature depth: 5/5. L4/L7, TCP/HTTP, highly configurable
  • Support quality. No support evidence in reviewed sources
  • Security posture: 3/5. Critical CVEs shipped, patches released quickly
  • $0 Starting price Open-source core, free to run
  • Yes Free tier Full open-source version, community support
  • L4 & L7 Balancing layers TCP and HTTP traffic

Pricing

Community (open source)

$0

  • TCP/HTTP L4/L7 load balancing
  • High availability reverse proxy
  • Community support

HAProxy Enterprise

Not published in reviewed sources

  • Vendor-backed enterprise edition
  • Contact vendor for pricing

Security

Mature, actively patched open-source project; several CVEs disclosed 2023–2024, including one critical (CVSS 9.1, patched).

  • CVE-2023-25725 — critical HTTP request smugglingRated critical (CVSS 9.1); marked as patched.⁸
  • HTTP request/response smuggling (2024 advisory)Affected HAProxy version 3.0.3; vendor issued fixes.⁹
  • HTTP request/response smuggling (2023 advisory)Affected HAProxy version 2.6.8.

What users say

Comparisons and guides consistently describe HAProxy as fast, stable and highly configurable, but aimed at hands-on operators rather than beginners.

Full analysis

Based on ~20 public sources. No user review ratings, named customers, or public enterprise pricing found in the sources reviewed.

Free, battle-tested L4/L7 load balancer. Great with ops skills; use your cloud's managed LB if you don't have them.

Methodology

Based on ~20 public sources. No user review ratings, named customers, or public enterprise pricing found in the sources reviewed.

Sources

  1. HAProxy official sitehaproxy.org
    official
  2. HAProxy Load Balancer Configuration Basicshaproxy.com
    official
  3. What Is HAProxy? A Practical Guide to L4/L7 Load Balancinglogicmonitor.com
    review
  4. Traefik vs HAProxy: Which Load Balancer Reigns Supreme?wallarm.com
    review
  5. 11 Top Load Balancers for 2026xurrent.com
    review
  6. Envoy vs HAProxy: Which Proxy Server Is Right for Your Teamlast9.io
    review
  7. How to Use HAProxy for Load Balancingakamai.com
    review
  8. CVE-2023-25725: CRITICAL (CVSS 9.1) · Patchedechelongraph.io
    security
  9. HAProxy vulnerable to HTTP request/response smuggling (3.0.3)jvn.jp
    security
  10. HAProxy, powering today's applications — High Scalabilityhighscalability.com
    news

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