BunkerWeb vs Impart WAF: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
BunkerWeb is a free cloud web application and api protection tool. Impart WAF is a commercial api security tool by Impart Security. Compare features, ratings, integrations, and community reviews side by side to find the best cloud web application and api protection fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictShort answer
Teams deploying WAF in Kubernetes or container environments should reach for BunkerWeb first; its open-source model means you customize detection rules without vendor lock-in, and the 10K GitHub stars reflect real adoption by practitioners who've actually tested it in production. The free pricing removes the friction of POC approval, letting you validate WAF efficacy before committing budget. Skip it if your compliance mandate requires commercial SLA support or you need managed rule updates from a vendor with dedicated threat research; BunkerWeb puts rule maintenance on you. Teams shipping APIs at startup speed need Impart WAF because its AssemblyScript rules and Terraform integration let developers write and test WAF policy the same way they write application code, eliminating the security-ops bottleneck that kills deployment velocity. The runtime rule graphs and automatic false positive detection reduce alert fatigue by half compared to signature-based WAF, and JWT-plus-API-key authorization analysis catches account takeover attempts that simpler tools miss entirely. Skip this if your org still uses WAF primarily for perimeter defense against script kiddies; Impart is built for teams defending APIs and microservices that move faster than traditional security workflows allow.
