# curl vs Fiddler

**Leader by vioscaleAI score:** curl

| Attribute | curl | Fiddler |
|---|---|---|
| **vioscaleAI score** | 65 (51% (medium)) | 56.9 (72% (medium)) |
| activity.commits_last_30d | 100 | - |
| adoption.dependent_repos | 3,409 | - |
| adoption.github_stars | 43,119 | - |
| content.faq | `[{"answer":"An open-source solution available as both a command-line tool and embedded library, enabling network data transmission across billions of devices and applications worldwide. It is indexed under API Development Tools.","source":"https://curl.se/","question":"What is curl?","confidence":0.6},{"answer":"curl is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://curl.se/","question":"Is curl free to use?","confidence":0.6},{"answer":"curl supports Windows, Linux, iOS and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.","source":"https://curl.se/","question":"What platforms does curl support?","confidence":0.6},{"answer":"Yes. curl can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://curl.se/","question":"Can curl be self-hosted?","confidence":0.6}]` | `[{"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}]` |
| deployment.options | `{"self_hosted":true}` | `{"cloud":true}` |
| description.long | curl is a widely-used command-line tool and library that enables data transfer using URL syntax. It supports numerous protocols including HTTP, HTTPS, and MQTT, and can be used both from the command line and as a programmatic library. | 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. |
| features.capabilities | `{"api_docs":true,"rest_client":true,"ci_integration":true,"automated_testing":true}` | `{"mock_server":true,"rest_client":true,"ci_integration":true}` |
| integrations.count | - | 1 |
| integrations.list | - | `[{"name":"MCP","native":true}]` |
| language.primary | C | - |
| market.availability | `{"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` | `{"primaryMarkets":["US"],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | `{"cli":true,"ios":true,"mac":true,"linux":true,"windows":true}` | `{"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","summary":"Free and open source","sourceUrl":"https://curl.se/","retrievedAt":"2026-09-14T13:20:23.780Z"}` | `{"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"]}` |
| pricing.free_tier | yes | yes |
| pricing.model | open_source | freemium |
| pricing.price_level | free | low |
| pricing.starting_price | - | `{"amount":7,"currency":"USD"}` |
| pricing.transparent | yes | yes |
| release.cadence_days | 48 | - |
| release.history | `[{"url":"https://github.com/curl/curl/releases/tag/curl-8_23_0","date":"2026-10-14T06:05:46Z","type":"stable","version":"curl-8_23_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_22_0","date":"2026-09-02T05:59:35Z","type":"stable","version":"curl-8_22_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_21_0","date":"2026-06-24T06:03:04Z","type":"stable","version":"curl-8_21_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_20_0","date":"2026-04-29T06:31:23Z","type":"stable","version":"curl-8_20_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_19_0","date":"2026-03-11T06:52:50Z","type":"stable","version":"curl-8_19_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_18_0","date":"2026-01-07T07:03:41Z","type":"stable","version":"curl-8_18_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_17_0","date":"2025-11-05T07:18:19Z","type":"stable","version":"curl-8_17_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_16_0","date":"2025-09-10T05:48:58Z","type":"stable","version":"curl-8_16_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_15_0","date":"2025-07-16T06:30:51Z","type":"stable","version":"curl-8_15_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_14_1","date":"2025-06-04T05:58:45Z","type":"stable","version":"curl-8_14_1"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_14_0","date":"2025-05-28T05:47:27Z","type":"stable","version":"curl-8_14_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_13_0","date":"2025-04-02T05:56:33Z","type":"stable","version":"curl-8_13_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_12_1","date":"2025-02-13T07:22:05Z","type":"stable","version":"curl-8_12_1"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_12_0","date":"2025-02-05T08:18:37Z","type":"stable","version":"curl-8_12_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_11_1","date":"2024-12-11T07:17:04Z","type":"stable","version":"curl-8_11_1"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_11_0","date":"2024-11-06T07:18:25Z","type":"stable","version":"curl-8_11_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_10_1","date":"2024-09-18T06:08:13Z","type":"stable","version":"curl-8_10_1"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_10_0","date":"2024-09-11T05:53:05Z","type":"stable","version":"curl-8_10_0"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_9_1","date":"2024-07-31T07:08:30Z","type":"stable","version":"curl-8_9_1"},{"url":"https://github.com/curl/curl/releases/tag/curl-8_9_0","date":"2024-07-24T06:37:51Z","type":"stable","version":"curl-8_9_0"}]` | - |
| reliability.status_page | - | yes |
| security.disclosure_policy | yes | yes |
| security.scorecard | 9 | - |
| security.soc2 | - | yes |
| security.trust_center | https://curl.se/docs/security.html | - |
| security.vulnerabilities | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=conda&package_name=ca-certificates&per_page=100","last_12m":0,"max_severity":null}` | - |

## Capabilities (API Development Tools)

| Capability | curl | Fiddler |
|---|:--:|:--:|
| **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 2026-10-16T20:38:40.561Z. "-" = undocumented, not absent.*