WTForms-JSON
Adds smart json support for WTForms. Useful for when using WTForms with RESTful APIs.
Decision gist · record as of 2026-08-14
No. The package is abandoned and has not been maintained since 2022-04-16. While it carries no known vulnerabilities and uses a permissive license, the lack of active maintenance means compatibility issues with modern Python versions and WTForms releases are likely unresolved. For new projects, consider maintained alternatives or implement JSON validation directly.AI-flagged interpretation of the facts on this page — verify before relying
Before you install
- Requires WTForms to be installed separately; no version constraint is specified, so compatibility with newer WTForms releases is uncertain.
- High install friction with no runtime dependencies.
- The package is abandoned—last release was 2022-04-16 with no maintenance activity since then.
License · maintenance · safety
BSD (permissive) — BSD license (permissive) places no restrictions on use, modification, or distribution.
last release 2022-04-16 (1581 days) · last repo commit 2022-04-16 · 142 stars
0 known vulnerabilities (OSV.dev, 2026-08-14) · 381,236 downloads/mo, #7,097 on PyPI
Alternatives
Verify before relying
pip install WTForms-JSON
import wtforms_json
from wtforms import Form, StringField
wtforms_json.init()
form = MyForm.from_json(json_data)- Whether the package works reliably with current WTForms versions and modern Python releases despite abandonment.
- Whether JSON parsing behavior handles edge cases or malformed input gracefully.
- Active community forks or maintained alternatives that may have superseded this package.
What it is and what it does
WTForms-JSON bridges WTForms validation and JSON input by providing methods to populate and validate forms directly from JSON data. It's designed for REST API developers who want to reuse WTForms' declarative validation logic without parsing JSON manually into form fields.
The package has no runtime dependencies beyond WTForms itself, making it lightweight to add to an existing project. However, it has been abandoned since 2022-04-16 with no maintenance activity, meaning bugs, compatibility issues with newer Python or WTForms versions, and security concerns will not be addressed by the original author.
Use it for
- Validate incoming JSON payloads in REST API endpoints using existing WTForms form definitions.
- Populate WTForms fields directly from JSON request bodies without manual field-by-field assignment.
- Reuse server-side form validation logic for API requests in addition to traditional HTML form submissions.
- Enforce consistent validation rules across both web forms and JSON API clients using a single form schema.
Worth the install?
AI-flagged interpretation of the facts on this page. Verify before relying on it.
No.
The package is abandoned and has not been maintained since 2022-04-16. While it carries no known vulnerabilities and uses a permissive license, the lack of active maintenance means compatibility issues with modern Python versions and WTForms releases are likely unresolved. For new projects, consider maintained alternatives or implement JSON validation directly.
Install
wtforms-json on PyPI
Before you install
High install friction with no runtime dependencies. The package is abandoned—last release was 2022-04-16 with no maintenance activity since then.
Requires WTForms to be installed separately; no version constraint is specified, so compatibility with newer WTForms releases is uncertain.
License in practice
BSD license (permissive) places no restrictions on use, modification, or distribution.
Quickstart
pip install WTForms-JSON
import wtforms_json
from wtforms import Form, StringField
wtforms_json.init()
form = MyForm.from_json(json_data)Verify before relying
- Whether the package works reliably with current WTForms versions and modern Python releases despite abandonment.
- Whether JSON parsing behavior handles edge cases or malformed input gracefully.
- Active community forks or maintained alternatives that may have superseded this package.
Package facts
| License | BSD permissive |
| Python support | Not specified |
| Install friction | High. Source build required |
| Runtime dependencies | None |
| Maintenance | Abandoned 1,581 days since the last release |
| Last repo commit | |
| First released | |
| Downloads | 381,236 / month, #7,097 on PyPI 30-day window, as of 2026-08-14 |
| Known vulnerabilities | None known OSV.dev, checked 2026-08-14 |
| Classifiers | Environment :: Web EnvironmentIntended Audience :: DevelopersLicense :: OSI Approved :: BSD LicenseOperating System :: OS IndependentProgramming Language :: PythonProgramming Language :: Python :: 2Programming Language :: Python :: 2.7Programming Language :: Python :: 3Programming Language :: Python :: 3.10Programming Language :: Python :: 3.3Programming Language :: Python :: 3.4Programming Language :: Python :: 3.5Programming Language :: Python :: 3.6Programming Language :: Python :: 3.7Programming Language :: Python :: 3.8Programming Language :: Python :: 3.9Programming Language :: Python :: Implementation :: CPythonProgramming Language :: Python :: Implementation :: PyPyTopic :: Internet :: WWW/HTTP :: Dynamic ContentTopic :: Software Development :: Libraries :: Python Modules |
Evidence: WTForms-JSON-0.3.5.tar.gz
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See also WTForms-Components · WTForms · Flask-WTF · types-WTForms · WTForms-Alchemy · WTForms-SQLAlchemy · flask-marshmallow · Bootstrap-Flask · quart-schema · flask-mongoengine