mafintosh/is-my-json-valid

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A JSONSchema validator that uses code generation to be extremely fast

Stars: 962
Forks: 115
Open beginner issues: 0
Indexed issues: 40

Dominant language: JavaScript
License: MIT
Last GitHub push: Aug 25, 2026
Latest indexed: Sep 19, 2026
Contributing guide: No contributing guide
Code of conduct: No code of conduct
Beginner labels: No beginner labels indexed
PR merge metrics: No merged PRs in 30d

Beginner friendly Everything

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40 open issues indexed

Properties having type `never` when using oneOf Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

mafintosh/is-my-json-valid#194 · Opened May 14, 2024
Heads up: 2.20.6 breaks semver Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mafintosh/is-my-json-valid#190 · 1 comment · Opened Nov 29, 2021
xtend is deprecated Open

Difficulty 2/5 1-3 hours Newbie friendliness 35/100

mafintosh/is-my-json-valid#187 · Opened Sep 15, 2021
Required field in schema gets type 'string | undefined' Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#184 · 6 comments · Opened Jul 28, 2021
Error Messages in Spanish Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mafintosh/is-my-json-valid#177 · 4 comments · Opened Feb 27, 2020
oneOf filter Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

mafintosh/is-my-json-valid#174 · 5 comments · Opened Nov 14, 2018
TypeScript: passing schema via variable doesn't work Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#173 · 1 comment · 1 reaction · Opened Sep 20, 2018
isMultipleOf() false negatives? Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mafintosh/is-my-json-valid#172 · 6 comments · Opened Sep 8, 2018
Plan for 3.0.0 Open

Difficulty 5/5 Over a week Newbie friendliness 20/100

mafintosh/is-my-json-valid#169 · 1 comment · 1 reaction · Opened Aug 13, 2018
External schema always true Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#163 · Opened Jun 20, 2018
draft-06 / draft-07 support? Open

Difficulty 5/5 Over a week Newbie friendliness 15/100

mafintosh/is-my-json-valid#160 · 2 comments · 2 reactions · Opened Mar 11, 2018
Error when reading property of JSON that may be null if not type is assigned. Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mafintosh/is-my-json-valid#147 · 2 reactions · Opened Oct 4, 2017
data[keys1.0] when using object format of `additionalProperties` Open

Difficulty 2/5 1-3 hours Newbie friendliness 45/100

mafintosh/is-my-json-valid#146 · 1 reaction · Opened Oct 2, 2017
Its Not validating Objects under an array Open

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mafintosh/is-my-json-valid#145 · 5 comments · Opened Aug 24, 2017
undefined fields shouldn't be used when checking enum Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#142 · 4 comments · 1 reaction · Opened Jun 26, 2017
Inform user of valid enum values when an invalid rule config value is given Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mafintosh/is-my-json-valid#122 · 2 comments · 4 reactions · Opened Aug 6, 2016
message: 'referenced schema does not match', Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#114 · 1 comment · 1 reaction · Opened Apr 12, 2016
"oneOf" Validation behaves the opposite way Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mafintosh/is-my-json-valid#113 · 3 comments · Opened Apr 1, 2016
support relative URIs per RFC1808 and RFC3986 Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

mafintosh/is-my-json-valid#105 · 8 comments · Opened Jan 27, 2016
Update error "has additional properties" to have array with additional properties names Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#102 · 4 comments · Opened Dec 17, 2015
uniqueItems validation depends on the order of keys Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#98 · 2 comments · Opened Oct 26, 2015
Bug when using external references? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#96 · 5 comments · 1 reaction · Opened Oct 21, 2015
Should filter require missing properties? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#87 · 1 reaction · Opened Aug 13, 2015
Use json-pointer instead of dot-joined paths for the `field` property of errors Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#84 · 3 comments · Opened Jun 21, 2015
no (or more than one) schemas match - not detailed enough Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#82 · 6 comments · Opened Jun 13, 2015
Wrong result of a validation Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mafintosh/is-my-json-valid#75 · 3 comments · Opened May 27, 2015
option 'greedy' doesn't seem to work Open

Difficulty 3/5 1-2 days Newbie friendliness 30/100

mafintosh/is-my-json-valid#74 · 3 comments · Opened May 23, 2015
Indicate when referenced schema isn't available Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mafintosh/is-my-json-valid#71 · 1 comment · Opened May 16, 2015
Browser support Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

mafintosh/is-my-json-valid#70 · 12 comments · 1 reaction · Opened May 15, 2015
Edge case: minItems isn't honored when also using required Open

bug

Difficulty 3/5 1-2 days Newbie friendliness 25/100

mafintosh/is-my-json-valid#65 · 3 comments · Opened May 6, 2015
add options flag banUnknownProperties Open

enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

mafintosh/is-my-json-valid#59 · Opened Apr 18, 2015
Error codes for standard errors Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

mafintosh/is-my-json-valid#49 · 1 comment · Opened Mar 25, 2015
Option to substitute in default values Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mafintosh/is-my-json-valid#48 · 3 comments · 2 reactions · Opened Mar 25, 2015
filter() constructor doesn't seem to show errors. Open

Difficulty 3/5 1-2 days Newbie friendliness 38/100

mafintosh/is-my-json-valid#44 · 3 comments · 1 reaction · Opened Mar 14, 2015
Define formats with custom error messages Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#43 · 4 comments · Opened Mar 12, 2015
Include name of the validation rule in errors? Open

Difficulty 3/5 1-2 days Newbie friendliness 35/100

mafintosh/is-my-json-valid#39 · 2 comments · Opened Feb 28, 2015
Better error messages when oneOf/anyOf doesn't match Open

Difficulty 5/5 Over a week Newbie friendliness 35/100

mafintosh/is-my-json-valid#38 · 7 comments · 3 reactions · Opened Feb 26, 2015
Type coercion (or data cleaning) Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

mafintosh/is-my-json-valid#34 · 24 comments · Opened Feb 22, 2015
Can't see errors with referenced schemas Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 25/100

mafintosh/is-my-json-valid#22 · 11 comments · 1 reaction · Opened Feb 11, 2015
Custom validation Open

Difficulty 5/5 Over a week Newbie friendliness 25/100

mafintosh/is-my-json-valid#20 · 13 comments · Opened Feb 9, 2015

mafintosh/is-my-json-valid

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