A free Python command-line tool that checks a website's HTTPS certificate and tells you exactly what's wrong with it — expired, untrusted, wrong hostname — instead of a generic connection error.
github.com
Alternatives to
SHIM
Best alternatives to SHIM in 2026
Every time your app calls OpenAI, Anthropic or Gemini, whatever your users typed — including emails, phone numbers, or card numbers they shouldn't have shared — goes straight to that provider. SHIM sits in between as a checkpoint: it catches and blanks out that sensitive information before the request leaves, without you having to change a line of your app's code. SHIM is a Python/FastAPI gateway, distributed as a Docker container, that transparently proxies traffic to OpenAI, Anthropic and Gemini. It detects and redacts PII (emails, phone numbers, credit cards, IBANs, national IDs, provider secrets), enforces rate limits (requests/tokens per minute), blocks repeat-loop request patterns, and tags every request with cost/usage attribution via an X-Shim-Tag header. The open-source Community Edition (Apache-2.0) needs no database and keeps state process-local; a paid Enterprise Edition (Elastic License 2.0) adds multi-tenancy, persistent audit logs, RBAC and budget controls.
Quick comparison of SHIM alternatives
| # | Tool | Best for | Price |
|---|---|---|---|
| 1 | Équipes DevOps/SRE et administrateurs système voulant un moniteur d'expiration de certificat sans dépendance pour cron/CI | — | |
| 2 | Développeurs et petites équipes voulant committer des secrets chiffrés dans Git sans gestionnaire cloud | — | |
| 3 | Développeurs et équipes sécurité utilisant des agents IA (Claude Code, MCP, LangChain, CrewAI, AutoGen) avec des skills/plugins tiers | — | |
| 4 | Consommateurs en ligne voulant vérifier l'authenticité d'une boutique avant d'acheter | — | |
| 5 | Chasseurs de bug bounty, chercheurs en sécurité, équipes de sécurité, pentesters, ingénieurs DevSecOps | — | |
| 6 | Fondateurs non-techniques, indie hackers, builders utilisant Lovable/Bolt/Cursor/Replit, petites équipes qui livrent vite, étudiants et débutants en code | — | |
| 7 | Développeurs et équipes DevOps/sécurité voulant un WAF auto-hébergé pour projets personnels ou non-commerciaux | — | |
| 8 | Chercheurs en sécurité, pentesters, chasseurs de bug bounty, professionnels cybersécurité | — | |
| 9 | Petits cabinets médicaux/dentaires et centres de santé communautaires américains recevant Medicare/Medicaid | — | |
| 10 | Développeurs utilisant des agents de code IA (Claude Code, Codex) sur des systèmes sensibles ou sous contrainte de conformité | — | |
| 11 | Ingénieurs DevOps, équipes sécurité et développeurs gérant des dépendances logicielles | — | |
| 12 | Équipes de développement qui produisent beaucoup de code généré par des assistants IA (Claude, Copilot, Cursor, Gemini...) | — |
#1
- ✓ Zero dependencies, easy to drop into bare servers or containers
- ✓ Detailed diagnostics rather than a generic 'connection failed'
#2
A free command-line tool that encrypts your .env secrets file so you can safely commit it to Git, with a pre-commit hook that catches accidental leaks before they happen.
github.com
- ✓ Genuinely zero-config: one command sets up encryption plus a pre-commit safety net
- ✓ No external dependencies or cloud service required
#3
A security scanner that formally verifies AI agent "skills" (tools/plugins) across 22 frameworks for supply-chain risks before you trust them.
github.com
- ✓ Scans 22 AI agent frameworks in one pass
- ✓ Generates HTML dashboards, lockfiles, and ASBOM documents for compliance
#4
A free scanner and Chrome extension that checks an online store for signs it's an AI-generated or fraudulent storefront before you buy anything.
bullsniff.com
- ✓ Completely free, no account required for the base scan
- ✓ Checks multiple independent trust signals, not just page content
#5
A free, self-hostable security scanner that checks web apps, mobile apps, and smart contracts for vulnerabilities, with AI-written fix instructions.
bugbounty-arsenal.net
- ✓ Broad coverage (web, mobile, Web3 smart contracts) with no license fee
- ✓ "Confirmed" findings model reduces false positives
#6
A security scanner built for people who use AI to write their code and have no idea whether it's leaking API keys or open to attack.
vibesafe.info
- ✓ Scan complet en moins de 10 secondes, sans configuration
- ✓ Rapports en langage clair avec correctif en un clic
#7
A firewall that sits in front of your website and inspects every request for common attacks — SQL injection, cross-site scripting and the like — before it ever reaches your app.
github.com
- ✓ Très faible latence (Rust + Pingora, p99 1.60ms)
- ✓ Couvre les vecteurs d'attaque web classiques (OWASP Core Rule Set + règles custom)
#8
A free, organized archive of real, already-disclosed security vulnerabilities and how they were exploited — a reference library for people who need to understand attacks in order to defend against them.
github.com
- ✓ Collection organisée de vulnérabilités réelles avec writeups techniques
- ✓ Couvre des logiciels connus et largement utilisés
#9
A flat-fee compliance package that brings a healthcare provider's website and patient portal up to Section 1557 accessibility standards before the 2027 federal deadline.
health.civicbinder.org
- ✓ Flat, predictable price instead of open-ended hourly consulting
- ✓ Bundles audit + legal documents + remediation plan in one package
#10
Puts a human approval gate in front of risky Claude Code / Codex actions, with secret redaction and replayable audit trails.
github.com
- ✓ Adds a genuine approval checkpoint before risky agent actions execute
- ✓ Automatic secret/credential redaction reduces accidental leak risk
#11
A local-first security scanner that checks your project's open-source dependencies for malicious packages and known vulnerabilities without sending your code anywhere.
github.com
- ✓ Huit moteurs de scan concurrents, dont des modèles IA pour la détection avancée
- ✓ Couvre neuf écosystèmes de paquets (npm, PyPI, Go, Maven, Cargo, NuGet, RubyGems, HuggingFace, GitHub Actions)
#12
Scans AI-generated code for hardcoded secrets and exploitable vulnerabilities, with AI-filtered false positives
sentrint.com
- ✓ Palier gratuit sans carte bancaire, avec rapport complet et suggestions de correction par IA
- ✓ Compatible avec 16+ plateformes IA, avec prompts de correction adaptés à chaque outil
FAQ about SHIM alternatives
- What is the best alternative to SHIM in 2026?
- Based on our selection, TLS Sentry is the best alternative to SHIM in 2026. A free Python command-line tool that checks a website's HTTPS certificate and tells you exactly what's wrong with it — expired, untrusted, wrong hostname — instead of a generic connection error.. See our full ranking above to compare all options.
- Is SHIM free?
- SHIM is a paid tool. Several alternatives in our selection offer free or freemium versions.
- How many alternatives to SHIM are there?
- mySelectas has listed 12 alternatives to SHIM in the Security & Privacy category. Our selection is updated regularly to include the best options available.