Third-party & Non-PKP Community Plugins
Third-party developers and research institutions have created additional plugins to extend OJS functionality. These are maintained independently of PKP.
Content Management & Display
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | ResearchGate Integration | Generic | Link article uploads to ResearchGate profiles | 3.4+ | GitHub | OJSDE | Community maintained |
| 2 | Scholarly Kitchen Plugin | Generic | Scholarly Kitchen article discussion integration | 3.3+ | GitHub | Community | Check OJS 3.5 compatibility |
| 3 | Library Search Plugin | Block | Library catalog search widget | 3.3+ | GitHub | OJSDE | Community maintained |
| 4 | Article Navigation Plugin | Generic | Enhanced article navigation and browsing | 3.4+ | GitHub | OJSDE | Community maintained |
| 5 | Table of Contents Plugin | Block | Sidebar table of contents for articles | 3.3+ | GitHub | OJSDE | Community maintained |
| 6 | Inline HTML Galley | Generic | Renders HTML galley content directly on article landing pages; shows access CTA for non-subscribers | 3.4+ | GitHub | ulsdevteam (U. Pittsburgh) | Community maintained |
Metadata & Research Tools
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Zotero Integration | Generic | Citation management integration with Zotero | 3.4+ | GitHub | OJSDE | Community maintained |
| 2 | Semantic Scholar | Generic | Academic paper discovery via Semantic Scholar API | 3.4+ | GitHub | OJSDE | Community maintained |
| 3 | Crossmark Plugin | Generic | Crossmark document verification badge | 3.4+ | GitHub | OJSDE | Community maintained |
| 4 | Indexed By Plugin | Block | Display indexing information (PubMed, WOS, Scopus) | 3.3+ | GitHub | OJSDE | Community maintained |
| 5 | Altmetrics Badge | Generic | Display article-level altmetrics scores | 3.4+ | GitHub | OJSDE | Community maintained |
| 6 | OpenAIRE | Generic | Exports article metadata conforming to OpenAIRE Guidelines for Literature Repository Managers v4; improves discoverability in EU open-access infrastructure | 3.3+ | GitHub | OJSDE | Active (2026) |
Author & Reviewer Tools
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Author Dashboard | Generic | Enhanced author workflow dashboard | 3.4+ | GitHub | OJSDE | Community maintained |
| 2 | Reviewer Analytics | Report | Advanced reviewer performance analytics | 3.4+ | GitHub | OJSDE | Community maintained |
| 3 | Author Notifications | Generic | Enhanced author notification system | 3.3+ | GitHub | OJSDE | Community maintained |
| 4 | Peer Review Insights | Report | Detailed peer review process analytics | 3.4+ | GitHub | OJSDE | Community maintained |
| 5 | Invitation Tracking | Generic | Track author/reviewer invitation responses | 3.3+ | GitHub | OJSDE | Community maintained |
SEO & Discoverability
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | XML Sitemap Enhanced | Generic | Advanced XML sitemap generation for SEO | 3.4+ | GitHub | OJSDE | Community maintained |
| 2 | Schema.org Markup | Generic | Structured data markup for search engines | 3.4+ | GitHub | OJSDE | Community maintained |
| 3 | Twitter Cards | Generic | Enhanced Twitter card metadata | 3.3+ | GitHub | OJSDE | Community maintained |
| 4 | Pinterest Integration | Generic | Pinterest rich pins integration | 3.3+ | GitHub | OJSDE | Community maintained |
| 5 | Google Scholar Enhanced | Generic | Enhanced Google Scholar metadata generation | 3.4+ | GitHub | OJSDE | Community maintained |
| 6 | Shariff Social Sharing | Generic / Block | Privacy-preserving social media buttons (no third-party tracking until user clicks); 20+ services including Facebook, Twitter/X, LinkedIn, WhatsApp, Mastodon; footer, sidebar, or article page placement | 3.5+ | GitHub | OJSDE | Active (2025); OJS + OMP; available in Plugin Gallery |
System Administration & Maintenance
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | System Health Check | Generic | Server and system diagnostics plugin | 3.4+ | GitHub | OJSDE | Community maintained |
| 2 | Database Optimizer | Generic | Database query optimization and cleanup | 3.3+ | GitHub | OJSDE | Community maintained |
| 3 | File Manager Plus | Generic | Enhanced file management interface | 3.4+ | GitHub | OJSDE | Community maintained |
| 4 | Backup Manager | Generic | Automated backup and restore functionality | 3.3+ | GitHub | OJSDE | Community maintained |
| 5 | Performance Monitor | Generic | Real-time system performance monitoring | 3.4+ | GitHub | OJSDE | Community maintained |
Security & User Management
Actively maintained plugins from the University of Pittsburgh Library System (ulsdevteam).
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Form Honeypot | Generic | Invisible honeypot field on user registration to block bots | 3.4+ | GitHub | ulsdevteam | Active (2025) |
| 2 | Better Password | Generic | Enforces configurable password strength requirements (length, complexity) | 3.5+ | GitHub | ulsdevteam | Active (2026) |
| 3 | Username Validator | Generic | Validates usernames against a custom or built-in regex pattern | 3.4+ | GitHub | ulsdevteam | Community maintained |
| 4 | Admin Notification Manager | Generic | Automatically unsubscribes site admins from new-journal email notifications | 3.5+ | GitHub | ulsdevteam | Active (2026) |
Notifications & Communication
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Email Issue TOC | Generic | Includes the issue table of contents in new-issue notification emails | 3.4+ | GitHub | ulsdevteam | Active (2025) |
Reproducibility & Research Integrity
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | CODECHECK | Generic | Integrates CODECHECK computational reproducibility checks into OJS submission and review workflow; displays certificates on published articles | 3.5+ | GitHub | codecheckers / TU Delft | Active (2026); Apache 2.0 |
Library & Bibliography Integration
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Publications Zenon Plugin | Pub ID | Enter and display custom IDs linking to iDAI.bibliography / Zenon on article/book pages | 3.4+ | GitHub | DAINST (German Archaeological Institute) | OJS + OMP; community maintained |
Pharkie OJS Plugin Collection
A monorepo of specialized plugins by Pharkie built for a WordPress ↔ OJS integration where WooCommerce Subscriptions manages memberships and OJS hosts a paywalled journal. Each plugin works independently.
license
These plugins are released under the PolyForm Noncommercial 1.0.0 license — free for non-commercial use only. Review the license before deploying in a commercial context.
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Notes |
|---|---|---|---|---|---|---|
| 1 | Stripe Payment | Payment | Stripe Checkout payment (card, Apple Pay, Google Pay) for article/issue purchases; webhook-based confirmation | 3.4+ | GitHub | Replaces/supplements PKP Stripe; webhook support |
| 2 | Inline HTML Galley | Generic | Renders "Full Text" HTML galley inline on article landing page; shows membership/purchase CTA for non-subscribers | 3.4+ | GitHub | Contextual access messages |
| 3 | WP-OJS Subscription API | Generic | REST API for OJS user and subscription CRUD; WordPress password-hash verification; IP allowlist + API key auth | 3.4+ | GitHub | Designed for WooCommerce membership sync |
| 4 | Smarter Similar Articles | Generic | Hybrid TF-IDF + sentence-embedding similar articles; pre-computed offline via Python for sub-millisecond render time | 3.4+ | GitHub | Drop-in replacement for recommendBySimilarity |
| 5 | Archive Checker | Generic | Three-pane QA review tool (article list / PDF / HTML) for checking digitised archive content; approve/report workflow | 3.4+ | GitHub | For journal archive digitisation projects |
Export & Institutional Compliance
Plugins for depositing content into national libraries and exporting metadata in library-standard formats.
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | DNB Export Plugin | Import/Export | Exports article metadata and full texts (PDF/EPUB) for mandatory deposit to the Deutsche Nationalbibliothek (DNB); supports SFTP and WebDAV hot-folder delivery | 3.2–3.5 | GitHub | OJSDE | Active (2026); German journals |
| 2 | Metadata Export | Import/Export | Allows readers to download article metadata in BibTeX, MARC XML, RDF, and RIS formats via a download link on the article page | 3.3+ | GitHub | OJSDE | Community maintained |
Manuscript Production & Typesetting
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Developer | Notes |
|---|---|---|---|---|---|---|---|
| 1 | Typeset Plugin | Generic | Integrates the meTypeset CLI tool into OJS to convert DOCX/ODT submission files to JATS XML directly from the production stage | 3.1.2+ | GitHub | withanage (Dulip Withanage) | Requires meTypeset installed on server; Python 3 + Java |
About meTypeset
meTypeset is a standalone command-line tool that converts Word DOCX/ODT files to NLM/JATS XML via a TEI intermediary. It is the backend engine for the Typeset Plugin above and can also be used independently of OJS.
jonasraoni Plugin Collection
A set of well-maintained plugins by Jonas Raoni Soares da Silva (PKP developer), covering caching, search, email filtering, notifications, and analytics. All plugins are available in the OJS/OMP/OPS Plugin Gallery for OJS 3.5.
| S.No. | Plugin | Type | Purpose | Compatible up to OJS | Link | Notes |
|---|---|---|---|---|---|---|
| 1 | Mail Send Filter | Generic | Prevents emails from being sent to certain user accounts (e.g. disposable addresses, blocked domains) to reduce bounced emails and protect your mail server reputation | 3.5+ | GitHub | Available in Plugin Gallery; site-wide |
| 2 | Front End Cache | Generic | Generates gzipped full-page cache for the entire OJS installation and sets correct cache headers to reduce server load | 3.5+ | GitHub | Available in Plugin Gallery; site-wide |
| 3 | Full Text Search | Generic | Replaces the default OJS search engine with a database-backed full-text index (MySQL MATCH/AGAINST or PostgreSQL tsvector); results ranked by relevance | 3.5+ | GitHub | Available in Plugin Gallery; site-wide; MySQL + PostgreSQL |
| 4 | Registration Notification | Generic | Sends a configurable email notification to a list of recipients whenever a new user registers on the journal | 3.3+ | GitHub | Per-journal settings |
| 5 | Google Tag Manager | Generic | Integrates Google Tag Manager (GTM) for tracking and analytics via GTM container ID | 3.5+ | GitHub | Available in Plugin Gallery; OJS + OMP + OPS |
External OJS Analytics & Tools
Tools that work alongside OJS but are not OJS plugins — they connect to OJS via API, scraping, or exported data.
| S.No. | Tool | Type | Purpose | Link | Notes |
|---|---|---|---|---|---|
| 1 | OJS Institution Dashboard | External Tool | Streamlit dashboard showing how researchers at an institution use OJS journals; data from OpenAlex, ROR, and OJS Beacon | GitHub · Live Demo | Python / Streamlit; no OJS plugin required |
| 2 | OJS to JATS | Browser Extension | Firefox extension that reads OJS article pages and generates JATS XML for submission to the Russian Metafora database | GitHub | Vue + Vite; primarily for Russian-language OJS journals |
| 3 | OJS–Zenodo Bridge | External Tool | FastAPI micro-service that accepts an OJS article URL + DOI, scrapes Highwire/citation meta tags, pulls supplementary metadata from Crossref, and auto-deposits the article PDF to Zenodo with full metadata | GitHub | Python / FastAPI; runs as a separate service alongside OJS |
| 4 | OJS Galleon | External Tool / CLI | Converts DOCX and PDF submission files to structured HTML or JATS XML for use as OJS HTML galleys; two-column PDF layout detection, accessibility-compliant output, optional AI alt-text via Claude API; available on PyPI | GitHub · PyPI | Python ≥ 3.11; CLI + REST API + web UI |