Open-source plugins for PKP software — OJS (Open Journal Systems) and OMP (Open Monograph Press) — developed and maintained by OJSBR.
Everything here is released under the GNU GPL v3, so the whole PKP community can use,
adapt and contribute. Each plugin lives in its own repository, with one branch per supported
PKP version (stable-3_5_0, stable-3_4_0, …) and installable packages under Releases.
The Applications column says which PKP applications each plugin runs on. The sections below group them by the application they were written for; a plugin that also runs elsewhere says so in that column.
| Plugin | Applications | Type | What it does | PKP versions |
|---|---|---|---|---|
| viewcounter | OJS | generic | Shows each article's abstract views and downloads on summaries and article pages | 3.4 · 3.5 |
| mostRead | OJS | block | Sidebar block with the most-read articles of a time window | 3.4 · 3.5 |
| whatsAppContributor | OJS | generic | Adds a Phone/WhatsApp (E.164) field to the contributor form | 3.4 · 3.5 |
| doiInSummary | OJS | generic | Shows the article DOI in the issue summary and journal home page | 3.4 · 3.5 |
| ojsbrFilenameRename | OJS | generic | Renames the file delivered on download (configurable pattern) | 3.4 · 3.5 |
| orcidManualEntry | OJS | generic | Restores a manual ORCID field (contributor form, user registration and profile) when ORCID OAuth is not configured (authenticated ORCID stays recommended) | 3.5 |
| reviewerRecommendationManager | OJS | generic | Rename (multilingual), reorder and disable reviewer recommendations without patching core, preserving review history | 3.4 · 3.5 |
| blindReviewGuard | OJS | generic | Checks the files a reviewer is about to receive for anything that identifies the authors (document properties, tracked changes, comments, text, file name) and can remove the identifying metadata | 3.5 |
| staticEditorialTeam | OJS | generic | Brings back the static Editorial Team page: shows the journal's free-text setting instead of the dynamic masthead listing introduced in 3.5 | 3.5 |
| classicUserEditor | OJS | generic | Restores direct editing of users (given name, family name, email and roles) for managers and administrators, alongside the 3.5 invitation manager | 3.5 |
| authorContributorEditor | OJS | generic | Gives authors back the editing of the contributor list of their own submissions when their user group is allowed to edit submission metadata, as in 3.3/3.4 | 3.5 |
| reviewerDirectory | OJS | generic | Editor-only directory of reviewers (profiles + review stats, active-submission IDs, configurable columns, Excel export) and a period/issue reviewer roster (nominata) | 3.5 |
| controlledVocabSplitter | OJS | generic | Splits keywords, subjects, disciplines and supporting agencies pasted as a single line into separate terms, in the field and on every save (semicolon, comma or period; keeps legal references and species initials whole) | 3.5 |
| crossrefConference | OJS | generic | Deposits DOIs with Crossref as conference proceedings (<conference>/<conference_paper>) instead of journal records, as a DOI registration agency: event name, edition number, dates and location, and the proceedings DOI the papers hang off |
3.5 |
| articleMetricsBadges | OJS | generic | Article-level metric badges from PlumX, Dimensions and Altmetric, each provider and each position (article page, sidebar block) switchable on its own; renders only on articles with a DOI, every provider disabled by default with its terms of use documented | 3.3 · 3.4 · 3.5 |
| epubJsViewer | OJS · OPS · OMP | generic | Embedded EPUB galley reader with zoom, table of contents and reading modes, powered by epub.js; continues the epubViewer by Lepidus Tecnologia, discontinued in 2025 when its Bibi reading engine stopped being maintained, and never released for 3.5 |
3.5 |
| ojsbr-webhook | OJS | generic | Sends HTTP webhooks when submissions are created and articles published | 3.4 |
| accessibility | OJS · OMP | block | Sidebar accessibility controls for readers: zoom in/out, high-contrast toggle and reset (preferences persist across pages) | 3.3 · 3.4 · 3.5 |
| languageToggleByFlag | OJS · OPS · OMP | block | Sidebar language switcher with country flags (also works on OMP/OPS); adapted for 3.5 by OJSBR, original by Lepidus Tecnologia | 3.5 |
| vlibras | OJS · OMP | block | Embeds the VLibras widget (the Brazilian government's Portuguese→Libras sign-language translator) with its floating avatar | 3.3 · 3.4 · 3.5 |
| keywordCloudClassicBeautiful | OJS | block | Packed sidebar keyword cloud sized and coloured by frequency (the classic behaviour restored); self-contained, no CDN; original keywordCloud by PKP/SFU, maintained by Lepidus Tecnologia | 3.4 · 3.5 |
| recommendByAuthor | OJS | generic | Original recommendByAuthor by PKP/SFU, rewritten by OJSBR: the "articles by the same author" list is materialised by a scheduled task and read from a table, instead of scanning author_settings once per author on every article view (11.9 s → 16.6 ms on a journal of 4,823 articles); matches on a normalised name or ORCID, so it also finds articles the original misses | 3.3 · 3.5 |
| recommendBySimilarity | OJS | generic | Original recommendBySimilarity by PKP/SFU, rewritten by OJSBR: the "similar articles" list is materialised by a scheduled task and read from a table, instead of running a ranked search-index query with correlated subqueries on every article view; same terms and same ordering as the core | 3.3 · 3.5 |
| citations | OJS | generic | Citation counts and the list of citing works from Crossref Cited-by, Scopus, Europe PMC and Google Scholar on the article page — OJS 3.5 fork of RBoelter/citations, the original plugin by Ronny Bölter, which stops at 3.4 |
3.5 |
| pln | OJS | generic | PKP Preservation Network (PLN / PKP PN) — unofficial OJS 3.5 build (based on pkp/pln#117), maintained until the official release | 3.5 |
| shariff | OJS | generic | Privacy-friendly social media share buttons (Shariff) — unofficial OJS/OMP 3.5 build of ojsde/shariff with the Portuguese fixes proposed in ojsde/shariff#54, maintained until the official release | 3.5 |
| Plugin | Applications | Type | What it does | PKP versions |
|---|---|---|---|---|
| customMetadata | OMP | generic | Configurable extra metadata fields on the publication Metadata tab | 3.4 · 3.5 |
| crossref | OMP | generic | Crossref DOI registration/export for monographs and chapters (fills a gap OMP core lacks) | 3.4 · 3.5 |
| assignEditorGeneral | OMP | generic | Automatically assigns all active General Editors to each new submission | 3.5 |
| keywordCloudClassicBeautifulOmp | OMP | block | Packed sidebar keyword cloud of the press's books, sized and coloured by frequency (the classic behaviour restored); self-contained, no CDN; original keywordCloud by PKP/SFU, maintained by Lepidus Tecnologia | 3.5 |
| staticEditorialTeamOmp | OMP | generic | Brings back the static Editorial Team page: shows the press's free-text setting instead of the dynamic masthead listing introduced in 3.5 | 3.5 |
| classicUserEditorOmp | OMP | generic | Restores direct editing of users (given name, family name, email and roles) for managers and administrators, alongside the 3.5 invitation manager | 3.5 |
| controlledVocabSplitterOmp | OMP | generic | Splits keywords, subjects, disciplines and supporting agencies pasted as a single line into separate terms, in the field and on every save | 3.5 |
| ojsbrFilenameRenameOmp | OMP | generic | Renames the file delivered on download (configurable pattern), without touching the file on disk | 3.5 |
| orcidManualEntryOmp | OMP | generic | Restores a manual ORCID field on the contributor form when ORCID OAuth is not configured (authenticated ORCID stays recommended) | 3.5 |
| requiredMultilingualMetadataOmp | OMP | generic | Require the title, abstract and keywords in languages beyond the submission language | 3.5 |
| reviewerDirectoryOmp | OMP | generic | Editor-only directory of reviewers (profiles + review stats) and a per-period or per-series reviewer roster (nominata) | 3.5 |
| mostReadOmp | OMP | block | Sidebar block with the most-read books of a time window | 3.5 |
| audioPlayerOmp | OMP | generic | Turns a book's audio files into a listenable audiobook: play button per file, player bar with in-track seeking, continuous playback, adjustable speed and resume where the listener stopped; serves the file itself with full HTTP Range support, because the core answers Accept-Ranges: none |
3.5 |
| pdfFlipbookOmp | OMP | generic | Page-turning (flipbook) reading mode for PDF monographs, beside the native PDF viewer and never replacing it — the flipbook paints to canvas, so it has no text selection or screen-reader access. StPageFlip + PDF.js, vendored | 3.5 |
- Open the plugin's repository and go to Releases; download the
.tar.gzmatching your OJS/OMP version. - In your site: Settings → Website → Plugins → Upload A New Plugin, upload the package, then enable the plugin.
- Alternatively, clone the branch matching your version straight into
plugins/generic/(orplugins/blocks/for block plugins).
Each repository's README has full installation, configuration and credits.
Direct installable packages (.tar.gz). Pick the one matching your OJS/OMP version and
upload it via Settings → Website → Plugins → Upload A New Plugin.
| Plugin | Software | OJS/OMP 3.5 | OJS/OMP 3.4 | OJS 3.3 |
|---|---|---|---|---|
| blindReviewGuard | OJS | ⬇ 1.0.0.0 | — | — |
| viewcounter | OJS | ⬇ 1.2.0.4 | ⬇ 1.1.0.1 | — |
| mostRead | OJS | ⬇ 3.5.0.4 | ⬇ 3.4.0.2 | — |
| whatsAppContributor | OJS | ⬇ 1.1.0.3 | ⬇ 1.0.0.1 | — |
| doiInSummary | OJS | ⬇ 3.5.0.4 | ⬇ 3.4.0.2 | — |
| ojsbrFilenameRename | OJS | ⬇ 1.1.0.3 | ⬇ 1.1.0.1 | — |
| orcidManualEntry | OJS | ⬇ 1.1.0.1 | — | — |
| reviewerRecommendationManager | OJS | ⬇ 1.0.3.2 | ⬇ 1.0.3.1 | — |
| accessibility | OJS | ⬇ 1.0.1.2 | ⬇ 1.0.0.1 | ⬇ 1.0.0.1 |
| vlibras | OJS | ⬇ 1.0.0.2 | ⬇ 1.0.0.1 | ⬇ 1.0.0.1 |
| recommendByAuthor | OJS | ⬇ 2.0.0.2 | — | ⬇ 2.0.0.1 |
| recommendBySimilarity | OJS | ⬇ 2.0.0.2 | — | ⬇ 2.0.0.1 |
| staticEditorialTeam | OJS | ⬇ 1.0.0.2 | — | — |
| classicUserEditor | OJS | ⬇ 1.0.0.3 | — | — |
| authorContributorEditor | OJS | ⬇ 1.0.0.1 | — | — |
| reviewerDirectory | OJS | ⬇ 1.0.0.3 | — | — |
| controlledVocabSplitter | OJS | ⬇ 1.0.0.1 | — | — |
| crossrefConference | OJS | ⬇ 1.0.0.1 | — | — |
| languageToggleByFlag | OJS | ⬇ 3.5.0.5 | — | — |
| pln | OJS | ⬇ 4.0.0.2 | — | — |
| shariff | OJS | ⬇ 3.5.1.3 | — | — |
| epubJsViewer | OJS · OPS · OMP | ⬇ 1.2.0.3 | — | — |
| citations | OJS | ⬇ 3.5.0.1 | — | — |
| ojsbr-webhook | OJS | — | ⬇ 1.0.0.4 | — |
| customMetadata | OMP | ⬇ 1.0.0.3 | ⬇ 1.0.0.2 | — |
| crossref | OMP | ⬇ 1.0.0.4 | ⬇ 1.0.0.3 | — |
| assignEditorGeneral | OMP | ⬇ 1.0.0.3 | — | — |
| keywordCloudClassicBeautifulOmp | OMP | ⬇ 1.0.2.1 | — | — |
| staticEditorialTeamOmp | OMP | ⬇ 1.0.0.2 | — | — |
| classicUserEditorOmp | OMP | ⬇ 1.0.0.2 | — | — |
| controlledVocabSplitterOmp | OMP | ⬇ 1.0.0.1 | — | — |
| ojsbrFilenameRenameOmp | OMP | ⬇ 1.1.0.3 | — | — |
| orcidManualEntryOmp | OMP | ⬇ 1.0.2.1 | — | — |
| requiredMultilingualMetadataOmp | OMP | ⬇ 1.1.0.2 | — | — |
| reviewerDirectoryOmp | OMP | ⬇ 1.0.0.3 | — | — |
| mostReadOmp | OMP | ⬇ 3.5.0.4 | — | — |
| audioPlayerOmp | OMP | ⬇ 1.0.1.0 | — | — |
| pdfFlipbookOmp | OMP | ⬇ 0.3.0.0 | — | — |
| keywordCloudClassicBeautiful | OJS | ⬇ 1.0.2.1 | ⬇ 1.0.2.0 | — |
The latest package of each plugin is always on its repository's Releases page.
Some plugins were rewritten or adapted by OJSBR from earlier community work; upstream authors are credited in each repository's Credits & authorship section. Original authors we build on include Antti-Jussi Nygård (@ajnyga), Ronny Bölter (@RBoelter), @zielaq, Lepidus Tecnologia, FuturePress (epub.js), STI-FFLCH/USP, ABCD/USP and PKP.
Contributions are welcome in each plugin's repository — see its CONTRIBUTING.md and
CODE_OF_CONDUCT.md. Please target the branch matching the PKP version you are working on.
All OJSBR plugins are distributed under the GNU GPL v3.
Plugins de código aberto para os softwares da PKP — OJS (Open Journal Systems) e OMP (Open Monograph Press) — desenvolvidos e mantidos pela OJSBR.
Tudo aqui é distribuído sob a GNU GPL v3, para que toda a comunidade PKP possa usar,
adaptar e contribuir. Cada plugin fica em seu próprio repositório, com uma branch por versão
suportada do PKP (stable-3_5_0, stable-3_4_0, …) e pacotes instaláveis em Releases.
- Abra o repositório do plugin, vá em Releases e baixe o
.tar.gzda sua versão do OJS/OMP. - No seu site: Configurações → Website → Plugins → Enviar um novo plugin, envie o pacote e ative o plugin.
- Como alternativa, clone a branch da sua versão direto em
plugins/generic/(ouplugins/blocks/para plugins de bloco).
Links diretos de download de cada versão estão na tabela Downloads acima. Cada repositório traz README completo com instalação, configuração e créditos.
Alguns plugins foram reescritos ou adaptados pela OJSBR a partir de trabalhos anteriores da comunidade; os autores originais são creditados na seção Créditos e autoria de cada repositório. Entre os trabalhos originais em que nos baseamos estão os de Antti-Jussi Nygård (@ajnyga), Ronny Bölter (@RBoelter), @zielaq, Lepidus Tecnologia, FuturePress (epub.js), STI-FFLCH/USP, ABCD/USP e PKP.
Todos os plugins da OJSBR são distribuídos sob a GNU GPL v3.