# Fiddler vs Thunder Client

| Attribute | Fiddler | Thunder Client |
|---|---|---|
| **vioscaleAI score** | 56.9 (72% (medium)) | 61.5 (29% (low)) |
| content.faq | `[{"answer":"Fiddler is a debugging proxy that intercepts HTTP and HTTPS traffic between applications and servers, enabling developers to inspect, modify, and analyze network communication for troubleshooting purposes. Available as a modern cross-platform subscription service or legacy free Windows tool. It is indexed under API Development Tools.","source":"https://www.telerik.com/fiddler","question":"What is Fiddler?","confidence":0.6},{"answer":"Fiddler offers a free tier, so you can start without paying. Paid plans start at $7 per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.telerik.com/fiddler","question":"Is Fiddler free?","confidence":0.6},{"answer":"Fiddler supports Windows, macOS and Linux. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.telerik.com/fiddler","question":"What platforms does Fiddler support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Fiddler, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.telerik.com/fiddler","question":"Can Fiddler be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed SOC 2 for Fiddler. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Fiddler not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.telerik.com/fiddler","question":"What security certifications does Fiddler have?","confidence":0.6},{"answer":"Fiddler is available worldwide. Its primary market is the United States.","source":"https://www.telerik.com/fiddler","question":"Where is Fiddler available?","confidence":0.5}]` | `[{"answer":"A VS Code extension for testing and managing REST API requests with a clean, simple interface. Supports team collaboration by storing request data in Git repositories and includes advanced CLI capabilities. It is indexed under API Development Tools.","source":"https://www.thunderclient.com/","question":"What is Thunder Client?","confidence":0.6},{"answer":"Thunder Client offers a free tier, so you can start without paying. Paid plans start at $3 per user per month. Prices are published openly on the vendor's own pricing page. Pricing changes often, so verify at source before relying on it.","source":"https://www.thunderclient.com/pricing","question":"Is Thunder Client free?","confidence":0.6},{"answer":"Thunder Client supports a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://www.thunderclient.com/pricing","question":"What platforms does Thunder Client support?","confidence":0.6},{"answer":"We have only confirmed a cloud / SaaS deployment for Thunder Client, so it appears to be vendor-hosted. If a self-hosted option exists we have not found it documented publicly.","source":"https://www.thunderclient.com/pricing","question":"Can Thunder Client be self-hosted?","confidence":0.6},{"answer":"We have independently confirmed GDPR for Thunder Client. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Thunder Client not holding them. Always confirm compliance directly before you rely on it.","source":"https://www.thunderclient.com/privacy","question":"What security certifications does Thunder Client have?","confidence":0.7},{"answer":"Thunder Client is available worldwide. The vendor is headquartered in Ireland.","source":"https://www.thunderclient.com/pricing","question":"Where is Thunder Client available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true}` |
| description.long | A web debugging tool that captures, logs, and enables inspection and modification of HTTP(S) requests and responses flowing between your device and the internet. | A VS Code extension for testing and managing REST API requests with a clean, simple interface. Supports team collaboration by storing request data in Git repositories and includes advanced CLI capabilities. |
| features.capabilities | `{"mock_server":true,"rest_client":true,"ci_integration":true}` | `{"rest_client":true,"grpc_support":true,"collaboration":true,"ci_integration":true,"graphql_support":true,"automated_testing":true}` |
| integrations.count | 1 | 2 |
| integrations.list | `[{"name":"MCP","native":true}]` | `[{"name":"Azure"},{"name":"AWS"}]` |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"IE","primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"mac":true,"linux":true,"windows":true}` | `{"cli":true}` |
| pricing | `{"type":"subscription","plans":[{"free":false,"name":"Fiddler Everywhere","summary":"$7/month","features":["Capture and modify HTTP/S traffic","API composer for request editing"],"commitment":"monthly","components":[{"kind":"fixed","amount":7,"period":"month","currency":"USD"}],"contactSales":false},{"free":true,"name":"Fiddler Classic","summary":"Free (non-commercial use only)","features":["Manually inspect and debug Windows HTTP/S traffic","Basic Composer support"],"contactSales":false}],"summary":"From $7/month for Fiddler Everywhere. Free tier available. 10-day trial.","currency":"USD","freeTier":true,"sourceUrl":"https://www.telerik.com/fiddler","retrievedAt":"2026-09-03T23:02:38.844Z","freeTrialDays":10,"startingPrice":{"amount":7,"period":"month","currency":"USD"},"billingPeriods":["month"]}` | `{"type":"subscription","plans":[{"free":true,"name":"Free","features":["VS Code extension","Local storage"],"commitment":"monthly","components":[{"kind":"fixed","amount":0,"period":"month","currency":"USD"}],"contactSales":false},{"free":false,"name":"Starter","summary":"$3/user/month billed annually","features":["VS Code & JetBrains extensions","Team features","CLI & CI/CD","WebSocket, SSE, gRPC","250 Collection Runs per user"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":3,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"collection_runs":"250/month"}},{"free":false,"name":"Business","summary":"$7/user/month billed annually","features":["VS Code & JetBrains extensions","Team features","CLI & CI/CD","WebSocket, SSE, gRPC","500 Collection Runs per user"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":7,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"collection_runs":"500/month"}},{"free":false,"name":"Enterprise","summary":"$16/user/month billed annually","features":["VS Code & JetBrains extensions","Team features","CLI & CI/CD","WebSocket, SSE, gRPC","Unlimited Collection Runs","Offline Activation","Enterprise SSO","Secrets Manager Integration (Azure & AWS)","License Management API","Audit Logs","Performance Testing"],"commitment":"annual","components":[{"kind":"per_unit","unit":"seat","amount":16,"period":"month","currency":"USD"}],"contactSales":false,"includedLimits":{"collection_runs":"Unlimited"}}],"summary":"From free to $16/user/month. 14-day free trial available.","currency":"USD","freeTier":true,"sourceUrl":"https://www.thunderclient.com/pricing","retrievedAt":"2026-08-14T08:32:19.922Z","freeTrialDays":14,"startingPrice":{"amount":3,"period":"month","currency":"USD"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | freemium |
| pricing.price_level | low | low |
| pricing.starting_price | `{"amount":7,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.gdpr | - | yes |
| security.soc2 | yes | - |

## Capabilities (API Development Tools)

| Capability | Fiddler | Thunder Client |
|---|:--:|:--:|
| **Core** |  |  |
| REST client | ✓ | ✓ |
| GraphQL support | - | ✓ |
| gRPC support | - | ✓ |
| **Design** |  |  |
| Mock servers | ✓ | - |
| **Testing** |  |  |
| Automated / contract testing | - | ✓ |
| **Collaboration** |  |  |
| Team collaboration & sharing | - | ✓ |
| **Docs** |  |  |
| Doc generation | - | - |
| **Standards** |  |  |
| OpenAPI / spec import | - | - |
| **Ops** |  |  |
| CI integration / CLI | ✓ | ✓ |

*Source: vioscaleAI. Generated 2026-10-16T20:38:16.059Z. "-" = undocumented, not absent.*