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About

APIFuzzer reads your API description and step-by-step fuzzes the fields to validate if your application can cope with the fuzzed parameters, and it does not require coding. Parse API definition from a local file or remote URL. JSON and YAML file format support. All HTTP methods are supported. Fuzzing of the request body, query string, path parameter, and request header is supported. Relies on random mutations and supports CI integration. Generate JUnit XML test report format. Send a request to an alternative URL. Support HTTP basic auth from the configuration. Save the report of the failed test in JSON format into the pre-configured folder.

About

SafeJSON is an all-in-one local JSON toolkit built exclusively for developers. All parsing, comparison, JWT decoding and validation runs 100% inside your browser, with zero user data uploaded to external servers. Core features include standard JSON formatter, visual JSON Diff, JWT token decoder, JSONPath query engine, and JSON Schema validator. It supports huge 50MB+ JSON files powered by Web Workers, dark mode, collapsible tree views, and one-click raw JSON export. Users can independently verify full privacy via Chrome DevTools Network panel — no API keys, tokens or confidential payloads leave your device. The core toolset is permanently free, with advanced features (Diff & JWT) available via SafeJSON Pro ($5/month or $39/year). The full codebase is fully open-source on GitHub for full audit.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Anyone looking for a fuzzing solution to validate the parameters of their applications

Audience

Frontend & backend engineers, API testers, DevOps, security developers, full-stack programmers who work with JSON and auth tokens daily

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

No images available

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

$5/month, $39
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Not Supported
Webinars Supported
Live Online Not Supported
In Person Supported

Company Information

PyPI
pypi.org/project/APIFuzzer/

Company Information

SafeJSON
Founded: 2025
United States
safejson.dev

Alternatives

Echidna

Echidna

Crytic

Alternatives

JSON Crack

JSON Crack

ToDiagram
go-fuzz

go-fuzz

dvyukov
Peach Fuzzer

Peach Fuzzer

Peach Tech
LibFuzzer

LibFuzzer

LLVM Project
Liquid Studio

Liquid Studio

Liquid Technologies

Categories

Fuzz Testing Supported

Categories

JSON Editors Supported

Integrations

API Blueprint Supported
Arize Phoenix Supported
BudgetML Supported
CircleCI Supported
Git Supported
GitHub Supported
GraphQL Supported
JSON Supported
JUnit Supported
OneDev Supported
OpenAPIHub Supported
Python Supported
Spark NLP Supported
Swagger Supported
XML Supported

Integrations

API Blueprint Not Supported
Arize Phoenix Not Supported
BudgetML Not Supported
CircleCI Not Supported
Git Not Supported
GitHub Not Supported
GraphQL Not Supported
JSON Not Supported
JUnit Not Supported
OneDev Not Supported
OpenAPIHub Not Supported
Python Not Supported
Spark NLP Not Supported
Swagger Not Supported
XML Not Supported
Claim APIFuzzer and update features and information
Claim APIFuzzer and update features and information
Claim SafeJSON and update features and information
Claim SafeJSON and update features and information