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[Mail & Notifications](/categories/mail) 4. / 5. silverstripe/mimevalidator ActiveSilverstripe-vendormodule[Mail & Notifications](/categories/mail) silverstripe/mimevalidator ========================== Checks uploaded file content roughly matches a known MIME type for the file extension. 4.0.0(1y ago)102.0M↓14.1%13[4 issues](https://github.com/silverstripe/silverstripe-mimevalidator/issues)[1 PRs](https://github.com/silverstripe/silverstripe-mimevalidator/pulls)9BSD-3-ClausePHPPHP ^8.3CI passing Since Aug 4Pushed 9mo ago13 watchersCompare [ Source](https://github.com/silverstripe/silverstripe-mimevalidator)[ Packagist](https://packagist.org/packages/silverstripe/mimevalidator)[ RSS](/packages/silverstripe-mimevalidator/feed)WikiDiscussions 4 Synced 1mo ago READMEChangelog (10)Dependencies (6)Versions (58)Used By (9) MIME upload validator ===================== [](#mime-upload-validator) [![CI](https://github.com/silverstripe/silverstripe-mimevalidator/actions/workflows/ci.yml/badge.svg)](https://github.com/silverstripe/silverstripe-mimevalidator/actions/workflows/ci.yml)[![Silverstripe supported module](https://camo.githubusercontent.com/9b7e93d393a01f6d3091fb30983b870aa863ef076858115faaa1c74b995854ec/68747470733a2f2f696d672e736869656c64732e696f2f62616467652f73696c7665727374726970652d737570706f727465642d3030373143342e737667)](https://www.silverstripe.org/software/addons/silverstripe-commercially-supported-module-list/) Installation ------------ [](#installation) ``` composer require silverstripe/mimevalidator ``` Introduction ------------ [](#introduction) Checks uploaded file content roughly matches a known MIME type for the file extension. It can be used with `FileField` or any subclasses like `UploadField`. For example, it will fail validation if someone renames a `.exe` file to `.jpg`and attempts to upload the file. Installation via Composer ------------------------- [](#installation-via-composer) Install with composer by running `composer require silverstripe/mimevalidator` in the root of your Silverstripe project. Silverstripe CMS Recipe 4.6 and above include this module via `silverstripe/recipe-core`. Therefore, it is unnecessary to directly install this module if your project has been upgraded to, or was created with CMS Recipe 4.6.0 or later. Configuration ------------- [](#configuration) Read [Allowed file types on the Silverstripe CMS documentation](https://docs.silverstripe.org/en/developer_guides/files/allowed_file_types/) for details on configuring MIME type validation. ### Health Score 59 — FairBetter than 99% of packages Maintenance44 Moderate activity, may be stable Popularity50 Moderate usage in the ecosystem Community38 Small or concentrated contributor base Maturity92 Battle-tested with a long release history Bus Factor2 2 contributors hold 50%+ of commits How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window. **Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores. **Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement. **Maturity (30%)** — Project age, version count, PHP version support, and release stability. ### Release Activity Cadence Every ~70 days Recently: every ~32 days Total 58 Last Release 284d ago Major Versions 2.5.0 → 3.0.0-rc12023-03-30 2.x-dev → 3.0.12024-02-12 3.1.x-dev → 4.0.0-alpha12024-09-30 3.x-dev → 4.0.0-rc12025-04-02 3.0.x-dev → 4.0.x-dev2025-06-19 PHP version history (5 changes)2.1.0-beta1PHP ^7.1 || ^8 2.3.0PHP ^7.3 || ^8 2.4.0PHP ^7.4 || ^8 3.0.0-alpha1PHP ^8.1 4.0.0-alpha1PHP ^8.3 ### Community Maintainers ![](https://avatars.githubusercontent.com/u/654636?v=4)[Aaron Carlino](/maintainers/unclecheese)[@unclecheese](https://github.com/unclecheese) ![](https://www.gravatar.com/avatar/b0cba8b534e20e6ab4fff555a97b237a18436ebca1446fc0b29c8a8b504038b9?d=identicon)[GuySartorelli](/maintainers/GuySartorelli) ![](https://avatars.githubusercontent.com/u/111025?v=4)[Ingo Schommer](/maintainers/chillu)[@chillu](https://github.com/chillu) ![](https://www.gravatar.com/avatar/a25bc04c5720a36869d5a39c6449dde7eb43e19b7c8e666d5f632d6a9ab440b1?d=identicon)[emteknetnz](/maintainers/emteknetnz) ![](https://www.gravatar.com/avatar/afbb3dcc9ef29c1a6eedd6addcae5fce9ab1271915a85a4c349301b71237368d?d=identicon)[silverstripe-machine01](/maintainers/silverstripe-machine01) ![](https://www.gravatar.com/avatar/be6648e60fbab6f70bfc34dd8c14259562d28a47510a934ea9c01fe98633f3c2?d=identicon)[sminnee](/maintainers/sminnee) ![](https://avatars.githubusercontent.com/u/1168676?v=4)[Maxime Rainville](/maintainers/maxime-rainville)[@maxime-rainville](https://github.com/maxime-rainville) --- Top Contributors [![emteknetnz](https://avatars.githubusercontent.com/u/4809037?v=4)](https://github.com/emteknetnz "emteknetnz (42 commits)")[![GuySartorelli](https://avatars.githubusercontent.com/u/36352093?v=4)](https://github.com/GuySartorelli "GuySartorelli (34 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(1 commits)")[![sabina-talipova](https://avatars.githubusercontent.com/u/87288324?v=4)](https://github.com/sabina-talipova "sabina-talipova (1 commits)") --- Tags hacktoberfestvalidatormimesilverstripeuploadcwpfileinfo ### Code Quality TestsPHPUnit Code StylePHP\_CodeSniffer ### Embed Badge ![Health badge](/badges/silverstripe-mimevalidator/health.svg) ``` [![Health](https://phpackages.com/badges/silverstripe-mimevalidator/health.svg)](https://phpackages.com/packages/silverstripe-mimevalidator) ``` ### Alternatives [silverstripe/selectupload Enables files to be uploaded into a user-designated folder 2779.1k1](/packages/silverstripe-selectupload)[davidpersson/mm The PHP media library: media processing and MIME-Type/extension guessing. 2911.8k2](/packages/davidpersson-mm)[markguinn/silverstripe-email-helpers Silverstripe extension containing SMTP mailer class and some other classes for HTML emails 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