Convert YAML to JSON Free Online
Transform YAML config files, Kubernetes manifests, and DevOps configs to JSON format in seconds — free, no signup, data types fully preserved.
Drop your YAML file here
or click to browse · Accepts .yaml and .yml · Max 50 MB
How to Convert YAML to JSON Online
Upload Your YAML
Click or drag & drop your .yaml or .yml config file. Up to 50 MB.
Parse & Convert
FileForge parses your YAML with a full YAML 1.2 parser preserving all data types.
Download JSON
Get valid, pretty-printed JSON instantly. Deleted from servers right away.
Why Use FileForge?
Lightning Fast
Even complex YAML manifests convert in milliseconds.
Private & Secure
HTTPS encrypted. Config files deleted immediately after download.
100% Free
No account, no subscription — free for all DevOps use cases.
Works Everywhere
Browser-based, no CLI tools or dependencies needed.
About YAML to JSON Conversion
YAML (YAML Ain't Markup Language) is the configuration format of choice in modern DevOps — used by Docker Compose, Kubernetes, Helm charts, GitHub Actions, Ansible, and most CI/CD pipelines. JSON is required by many APIs, JavaScript frameworks, AWS IAM policies, Terraform inputs, and tooling that doesn't natively parse YAML. Converting between the two is a common daily task for engineers.
FileForge uses a complete YAML 1.2 compliant parser that preserves all data types correctly in the JSON output: strings stay strings, integers become JSON numbers, booleans become JSON true/false, nulls become JSON null, and nested objects and arrays maintain their full structure. Both .yaml and .yml file extensions are accepted.
Frequently Asked Questions
- Is the YAML to JSON converter free?Yes, completely free. No account, no subscription, no limits. Convert unlimited YAML files to JSON.
- Are YAML data types correctly converted to JSON?Yes. FileForge uses a full YAML parser that preserves all data types: strings, integers, floats, booleans, null values, arrays, and nested objects are all correctly mapped to their JSON equivalents.
- Does it support .yml and .yaml file extensions?Yes. Both .yaml and .yml file extensions are accepted and processed identically.
- Is my config file kept private?Yes. All transfers use HTTPS encryption. Your file is automatically deleted from our servers immediately after you download the JSON. We never store or read your configs.
- What is the maximum file size?YAML files up to 50 MB are supported — enough for even the most complex Kubernetes manifests and Helm chart configurations.