JSON & URL-Encoded Form Converter
Convert flat JSON values and scalar arrays to form pairs, or decode URL-encoded data with repeated-key preservation.
Ready. Explore the example or use the input controls to begin.
Scope and practical limits
Not multipart upload. Top-level scalar values or scalar arrays; no nested bracket syntax. Form data loses JSON types and one-item array distinctions. Decoding returns strings; repeated keys become arrays. Browser decoding replaces malformed encoding.
The tool processes your work in the browser. The website’s advertising and analytics follow its privacy and consent settings. Projects are not saved automatically. Media workspaces export their files directly rather than storing them in project JSON.
Using JSON & URL-Encoded Form Converter
Convert flat JSON values and scalar arrays to form pairs, or decode URL-encoded data with repeated-key preservation.
- Load the example or import the primary input. Supply the second JSON input when comparing or merging.
- Choose the explicit transformation rules, then inspect the result and audit before downloading.
- Download the output, audit or exact matrix JSON. Save a project to retain editable settings.
Example
{"tags":["red","blue"]} becomes tags=red&tags=blue; decoding retains both strings.Questions & answers
What behavior should I check before using the output?
Not multipart upload. Top-level scalar values or scalar arrays; no nested bracket syntax. Form data loses JSON types and one-item array distinctions. Decoding returns strings; repeated keys become arrays. Browser decoding replaces malformed encoding.
Are large JSON numbers rounded?
The shared JSON parser preserves numeric source tokens. Duplicate keys and inputs beyond the stated limits are rejected. Other applications can still round numbers when they parse an export.
Is my input saved automatically?
No. Save a project or download your result before leaving. Processing is local; website ads and analytics follow the site consent and privacy settings.
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