# Fiddler vs Swagger UI

**Leader by vioscaleAI score:** Swagger UI

| Attribute | Fiddler | Swagger UI |
|---|---|---|
| **vioscaleAI score** | 56.9 (72% (medium)) | 68.6 (68% (medium)) |
| activity.commits_last_30d | - | 26 |
| adoption.dependent_repos | - | 60,531 |
| adoption.github_stars | - | 29,027 |
| adoption.package_downloads_weekly | - | 129,984 |
| 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":"Swagger UI is a web-based tool that automatically generates interactive API documentation from OpenAPI definitions. It enables developers to visualize, test, and explore APIs with real-time validation and supports collaboration across teams through version control integration. It is indexed under API Development Tools.","source":"https://swagger.io/tools/swagger-ui/","question":"What is Swagger UI?","confidence":0.6},{"answer":"Swagger UI offers a free tier, so you can start without paying. Paid plans start at €21.20 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://swagger.io/tools/swagger-ui/","question":"Is Swagger UI free?","confidence":0.6},{"answer":"We have confirmed browser-based access to Swagger UI. That is the extent of what we could verify from public sources, so it may well offer desktop or mobile clients we have not indexed.","source":"https://swagger.io/tools/swagger-ui/","question":"What platforms does Swagger UI support?","confidence":0.6},{"answer":"Yes. Swagger UI can be deployed cloud / SaaS and self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://swagger.io/tools/swagger-ui/","question":"Can Swagger UI be self-hosted?","confidence":0.6},{"answer":"We have confirmed 3 integrations for Swagger UI, including GitHub, GitLab and BitBucket. This is what we could verify from public sources, so the vendor may support others we have not indexed.","source":"https://swagger.io/tools/swagger-ui/","question":"What does Swagger UI integrate with?","confidence":0.6},{"answer":"We have independently confirmed SOC 2, HIPAA and GDPR for Swagger UI. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Swagger UI not holding them. Always confirm compliance directly before you rely on it.","source":"https://swagger.io/tools/swagger-ui/","question":"What security certifications does Swagger UI have?","confidence":0.6},{"answer":"Yes. Swagger UI is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.","source":"https://github.com/swagger-api/swagger-ui","question":"Is Swagger UI open source?","confidence":0.99},{"answer":"Swagger UI is available worldwide. Its primary markets are the United States, the EU and Australia. The vendor is headquartered in the United States.","source":"https://swagger.io/tools/swagger-ui/","question":"Where is Swagger UI available?","confidence":0.75}]` |
| deployment.options | `{"cloud":true}` | `{"cloud":true,"on_prem":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 tool that automatically transforms OpenAPI specifications into visual, interactive documentation allowing developers to explore and test API operations directly without implementing the backend. Works across browsers and deployment environments as a set of reusable web components. |
| features.capabilities | `{"mock_server":true,"rest_client":true,"ci_integration":true}` | `{"api_docs":true,"mock_server":true,"rest_client":true,"collaboration":true,"ci_integration":true,"openapi_import":true,"automated_testing":true}` |
| integrations.count | 1 | 3 |
| integrations.list | `[{"name":"MCP","native":true}]` | `[{"name":"GitHub"},{"name":"GitLab"},{"name":"BitBucket"}]` |
| language.primary | - | JavaScript |
| license.spdx | - | Apache-2.0 |
| market.availability | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"hqCountry":"US","primaryMarkets":["US","EU","AU"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"mac":true,"linux":true,"windows":true}` | `{"web":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":false,"name":"Individual","summary":"€21.20/user/month (20% discount for annual billing)","features":["Catalog","Studio (Codegen, editor, form-based editor, 5 domains)","Portal (1 public product with SmartBear branding)","Contract testing (10 contracts, 10 AI credits)","Functional testing (50 test executions, test automation, CI/CD integration, assertions, reporting, sequential testing)"],"minSeats":1,"commitment":"monthly","components":[{"kind":"per_unit","unit":"user","amount":21.2,"period":"month","currency":"EUR"}],"description":"For individual developers needing powerful tools for API design, testing, and documentation.","contactSales":false,"includedLimits":{"catalog":"included","domains":"5","contracts":"10","ai_credits":"10","public_products":"1","test_executions":"50"}},{"free":false,"name":"Team","summary":"€32.34/user/month (20% discount for annual billing)","features":["Catalog","Studio (Codegen, editor, form-based editor, 10 domains)","Portal (2 public products with SmartBear branding)","Contract testing (20 contracts, 10 AI credits per user, 1 System Account, 2 Webhooks)","Functional testing (50 test executions, test automation, CI/CD integration, assertions, reporting, sequential testing)"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"user","amount":32.34,"period":"month","currency":"EUR"}],"description":"Ideal for small teams looking to enhance collaboration and documentation.","contactSales":false,"includedLimits":{"catalog":"included","domains":"10","webhooks":"2","contracts":"20","ai_credits":"10 per user","public_products":"2","system_accounts":"1","test_executions":"50"}},{"free":false,"name":"Enterprise","summary":"€54.68/user/month (20% discount for annual billing)","features":["Catalog","Studio (Standardization, unlimited domains)","Portal (5 public products with SmartBear branding)","Contract testing (50 contracts, 10 AI credits per user, 1 System Account, 50 Webhooks, RBAC)","Functional testing (100 test executions, test automation, CI/CD integration, assertions, reporting, sequential testing)"],"commitment":"monthly","components":[{"kind":"per_unit","unit":"user","amount":54.68,"period":"month","currency":"EUR"}],"description":"For larger teams needing advanced features for complex API management.","contactSales":false,"includedLimits":{"catalog":"included","domains":"unlimited","webhooks":"50","contracts":"50","ai_credits":"10 per user","public_products":"5","system_accounts":"1","test_executions":"100"}},{"free":false,"name":"Enterprise Plus","summary":"Contact for pricing","features":["Catalog","Studio (Standardization, unlimited domains, custom API templates)","Portal (Unlimited public and private products with full customization)","Contract testing (Unlimited contracts, 30 AI credits per user, Unlimited System Accounts, Unlimited Webhooks, RBAC)","Functional testing (Unlimited test executions, test automation, CI/CD integration, assertions, reporting, sequential & parallel testing)"],"description":"For enterprises needing maximum control, scalability, and dedicated support.","contactSales":true,"includedLimits":{"catalog":"included","domains":"unlimited with custom templates","webhooks":"unlimited","contracts":"unlimited","ai_credits":"30 per user","public_products":"unlimited","system_accounts":"unlimited","test_executions":"unlimited","private_products":"unlimited with full customization"}}],"addOns":[{"name":"Portal Pro","components":[{"kind":"per_unit","unit":"user","amount":27.5,"period":"month","currency":"EUR"}]},{"name":"Contract Testing Pro","components":[{"kind":"per_unit","unit":"user","amount":21.8,"period":"month","currency":"EUR"}]},{"name":"Enterprise SSO"}],"summary":"From €21.20/user/month. Free tier available. Yearly billing offers 20% discount. Contact sales for Enterprise Plus.","currency":"EUR","freeTier":true,"sourceUrl":"https://swagger.io/tools/swagger-ui/","retrievedAt":"2026-08-05T14:13:07.013Z","startingPrice":{"amount":21.2,"period":"month","currency":"EUR"},"billingPeriods":["month","year"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | freemium | commercial |
| pricing.price_level | low | free |
| pricing.starting_price | `{"amount":7,"currency":"USD"}` | - |
| pricing.transparent | yes | yes |
| release.cadence_days | - | 11 |
| release.history | - | `[{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.33.2","date":"2026-10-12T11:13:04Z","type":"stable","version":"v5.33.2"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.33.1","date":"2026-10-01T09:21:05Z","type":"stable","version":"v5.33.1"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.33.0","date":"2026-09-16T09:18:28Z","type":"stable","version":"v5.33.0"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.15","date":"2026-09-04T10:12:37Z","type":"stable","version":"v5.32.15"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.14","date":"2026-08-18T12:12:37Z","type":"stable","version":"v5.32.14"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.13","date":"2026-08-11T12:38:34Z","type":"stable","version":"v5.32.13"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.12","date":"2026-08-03T08:39:05Z","type":"stable","version":"v5.32.12"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.11","date":"2026-07-22T07:31:51Z","type":"stable","version":"v5.32.11"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.10","date":"2026-07-21T11:33:37Z","type":"stable","version":"v5.32.10"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.9","date":"2026-07-17T08:23:31Z","type":"stable","version":"v5.32.9"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.8","date":"2026-06-23T08:15:44Z","type":"stable","version":"v5.32.8"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.7","date":"2026-06-22T13:02:12Z","type":"stable","version":"v5.32.7"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.6","date":"2026-05-12T09:35:45Z","type":"stable","version":"v5.32.6"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.5","date":"2026-04-27T12:54:48Z","type":"stable","version":"v5.32.5"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.4","date":"2026-04-15T09:05:29Z","type":"stable","version":"v5.32.4"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.3","date":"2026-04-14T12:08:11Z","type":"stable","version":"v5.32.3"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.2","date":"2026-04-07T14:01:10Z","type":"stable","version":"v5.32.2"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.1","date":"2026-03-17T14:00:45Z","type":"stable","version":"v5.32.1"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.32.0","date":"2026-02-27T11:52:23Z","type":"stable","version":"v5.32.0"},{"url":"https://github.com/swagger-api/swagger-ui/releases/tag/v5.31.2","date":"2026-02-20T10:41:07Z","type":"stable","version":"v5.31.2"}]` |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | - |
| security.fedramp | - | yes |
| security.gdpr | - | yes |
| security.hipaa | - | yes |
| security.scorecard | - | 7.3 |
| security.soc2 | yes | yes |
| security.vulnerabilities | - | `{"count":2,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=swagger-ui-dist&per_page=100","last_12m":0,"max_severity":"MODERATE"}` |

## Capabilities (API Development Tools)

| Capability | Fiddler | Swagger UI |
|---|:--:|:--:|
| **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 2026-10-15T22:44:56.171Z. "-" = undocumented, not absent.*