Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

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  • Review section
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1586 ·

    Maintainers usually reply within 1 day

  • ARM64 support for GROBID DL version
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 28/100

    grobidOrg/grobid#1567 · 1 comment ·

    Maintainers usually reply within 1 day

  • `figure` and `table` training corpora predate the fulltext `superscript` feature, leaving `table` mixed-width
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 55/100

    grobidOrg/grobid#1547 · 1 comment ·

    Maintainers usually reply within 1 day

  • Design discussion: extending GROBID to books / edited volumes with per-chapter metadata
    Open
    • Is something wrong?
    thesis

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

    grobidOrg/grobid#1538 · 1 comment ·

    Maintainers usually reply within 1 day

  • Github.io page with Grobid citation analyitics
    Open
    • Is something wrong?

    Difficulty 3/5 3-5 days Newbie friendliness 52/100

    grobidOrg/grobid#1511 ·

    Maintainers usually reply within 1 day

  • Assign DOIs to GROBID realeases
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 32/100

    grobidOrg/grobid#1474 · 1 comment ·

    Maintainers usually reply within 1 day

  • Affiliation extraction improvements
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 8/100

    grobidOrg/grobid#1468 ·

    Maintainers usually reply within 1 day

  • `is_common_name` feature is always `0` for capitalised tokens, even when they appear in `english.wf`
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 52/100

    grobidOrg/grobid#1454 · 1 comment ·

    Maintainers usually reply within 1 day

  • citation/header consolidation - add a way to monitor the merge between the two versions
    Open
    • Is something wrong?
    consolidation

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    grobidOrg/grobid#1452 ·

    Maintainers usually reply within 1 day

  • Community page, Discord server and Mailing list
    Open
    • Is something wrong?

    Difficulty 1/5 Under an hour Newbie friendliness 15/100

    grobidOrg/grobid#1446 ·

    Maintainers usually reply within 1 day

  • Affiliation de-hypenisation
    Open
    • Is something wrong?

    Difficulty 1/5 Under an hour Newbie friendliness 75/100

    grobidOrg/grobid#1436 ·

    Maintainers usually reply within 1 day

  • Accuracy & vRAM: pdfalto vs PyMuPDF vs pdfplumber vsPDFFigures 2.0
    Open
    • Is something wrong?
    question

    Difficulty 5/5 Over a week Newbie friendliness 18/100

    grobidOrg/grobid#1432 · 2 comments ·

    Maintainers usually reply within 1 day

  • Add docker image summary when retagging
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 55/100

    grobidOrg/grobid#1428 ·

    Maintainers usually reply within 1 day

  • Create a grobid-base empty docker image
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1420 ·

    Maintainers usually reply within 1 day

  • DOI of previous version extracted
    Open
    • Is something wrong?
    bug error cases models:header

    Difficulty 4/5 3-5 days Newbie friendliness 28/100

    grobidOrg/grobid#1411 ·

    Maintainers usually reply within 1 day

  • Documentation refactor proposal: make GROBID docs task-oriented, evidence-backed, and platform-aware
    May be free again Open
    • Is something wrong?
    documentation enhancement need help

    Difficulty 5/5 Over a week Newbie friendliness 12/100

    grobidOrg/grobid#1410 · 1 comment ·

    Maintainers usually reply within 1 day

  • Store feature names alongside the model
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1396 · 1 comment ·

    Maintainers usually reply within 1 day

  • Same DOI gets extracted repeatedly
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    grobidOrg/grobid#1370 · 1 comment ·

    Maintainers usually reply within 1 day

  • Output references in wrong sequence
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1352 · 2 comments ·

    Maintainers usually reply within 1 day

  • Research infrastructures not recognized using delft model
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 22/100

    grobidOrg/grobid#1339 · 1 comment ·

    Maintainers usually reply within 1 day

  • Bug: PDF Parser Skipping Entire Page During Extraction and bibliographic info error
    May be free again Open
    • Is something wrong?
    error cases models:segmentation

    grobidOrg/grobid#1326 · 6 comments · 1 assignee ·

    Maintainers usually reply within 1 day

  • "et al." causing sentence issues
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1316 · 5 comments ·

    Maintainers usually reply within 1 day

  • Question: how to determine whether grobid is able to utilize GPU?
    Open
    • Is something wrong?
    question

    Difficulty 3/5 Half a day Newbie friendliness 22/100

    grobidOrg/grobid#1311 · 4 comments ·

    Maintainers usually reply within 1 day

  • Output JSON as simplified format
    Open
    • Is something wrong?

    Difficulty 3/5 1-2 days Newbie friendliness 20/100

    grobidOrg/grobid#1307 ·

    Maintainers usually reply within 1 day

  • Output Markdown as one simplified ouput format fulltext-focused
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1306 · 4 comments ·

    Maintainers usually reply within 1 day

  • best practices for enhancing figure/table annotation (question)
    Open
    • Is something wrong?
    question

    Difficulty 4/5 3-5 days Newbie friendliness 15/100

    grobidOrg/grobid#1289 · 2 comments ·

    Maintainers usually reply within 1 day

  • Using the figure number for matching figues of different types (Extended, Supplementary) might not be enough
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 22/100

    grobidOrg/grobid#1286 · 2 comments ·

    Maintainers usually reply within 1 day

  • Extracting from pdfs
    Open
    • Is something wrong?
    error cases models:fulltext models:segmentation

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    grobidOrg/grobid#1279 · 5 comments ·

    Maintainers usually reply within 1 day

  • Extraction of references from tables
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 10/100

    grobidOrg/grobid#1273 · 1 comment · 1 reaction ·

    Maintainers usually reply within 1 day

  • Grobid seems to keep skipping entire columns
    Open
    • Is something wrong?
    licence:needs_CC-BY models:segmentation

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

    grobidOrg/grobid#1270 · 1 comment ·

    Maintainers usually reply within 1 day

  • Parsing Error using Grobid with Apptainer
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1250 · 1 comment ·

    Maintainers usually reply within 1 day

  • Training the fulltext model
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1240 · 14 comments ·

    Maintainers usually reply within 1 day

  • Training fulltext - annotation doubt
    Open
    • Is something wrong?
    models:fulltext question training guidelines

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

    grobidOrg/grobid#1237 · 1 comment ·

    Maintainers usually reply within 1 day

  • For some PDFs fulltext document does not contain header document
    Open
    • Is something wrong?
    question

    Difficulty 4/5 3-5 days Newbie friendliness 22/100

    grobidOrg/grobid#1236 · 4 comments ·

    Maintainers usually reply within 1 day

  • Error 408 During PDF Batch Processing: Empty TXT Files Created Without Detailed Logs
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1234 · 6 comments ·

    Maintainers usually reply within 1 day

  • How should I annotate markers to list items? - training the fulltext model
    Open
    • Is something wrong?
    question training guidelines

    Difficulty 3/5 1-2 days Newbie friendliness 22/100

    grobidOrg/grobid#1220 · 1 comment ·

    Maintainers usually reply within 1 day

  • Supplementary materials
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 10/100

    grobidOrg/grobid#1199 ·

    Maintainers usually reply within 1 day

  • Correction of idno position under analytics
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1192 ·

    Maintainers usually reply within 1 day

  • Extracting tables spanning across multiple pages
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1186 · 1 comment ·

    Maintainers usually reply within 1 day

  • Annotation of footnoted references for training custom Grobid models
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    grobidOrg/grobid#1171 · 8 comments ·

    Maintainers usually reply within 1 day

  • Grobid docker container - location of grobid-trainer
    Open
    • Is something wrong?
    docker

    Difficulty 3/5 1-2 days Newbie friendliness 22/100

    grobidOrg/grobid#1167 · 16 comments ·

    Maintainers usually reply within 1 day

  • Not extracting when PDF is large
    Open
    • Is something wrong?
    error cases models:fulltext

    Difficulty 4/5 3-5 days Newbie friendliness 12/100

    grobidOrg/grobid#1162 · 4 comments ·

    Maintainers usually reply within 1 day

  • GROBID splits sentences, puts second half in a figure description
    Open
    • Is something wrong?
    error cases licence:needs_CC-BY models:fulltext

    Difficulty 4/5 3-5 days Newbie friendliness 15/100

    grobidOrg/grobid#1160 · 8 comments ·

    Maintainers usually reply within 1 day

  • Can one deploy grobid on AWS lambda?
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 18/100

    grobidOrg/grobid#1157 · 3 comments ·

    Maintainers usually reply within 1 day

  • Benchmark comparison between LLMs and GROBID for scholarly PDF data extraction
    Open
    • Is something wrong?

    Difficulty 5/5 Over a week Newbie friendliness 12/100

    grobidOrg/grobid#1146 · 3 comments · 10 reactions ·

    Maintainers usually reply within 1 day

  • Trial registration statement missing from xml output
    Open
    • Is something wrong?
    error cases licence:needs_CC-BY models:header

    Difficulty 4/5 3-5 days Newbie friendliness 18/100

    grobidOrg/grobid#1143 · 3 comments ·

    Maintainers usually reply within 1 day

  • Same document, different PDF files, same curl command, predictably different output.
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 20/100

    grobidOrg/grobid#1135 · 2 comments ·

    Maintainers usually reply within 1 day

  • DOI extraction
    Open
    • Is something wrong?

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

    grobidOrg/grobid#1126 · 4 comments ·

    Maintainers usually reply within 1 day

  • Errors: [BAD_INPUT_DATA] PDF to XML conversion failed with error code: 134 and 139
    May be free again Open
    • Is something wrong?

    grobidOrg/grobid#1120 · 3 comments · 1 reaction · 1 assignee ·

    Maintainers usually reply within 1 day

  • GROBID not able to extract the header numbers when they're in Roman or in alphabets
    Open
    • Is something wrong?

    Difficulty 4/5 Over a week Newbie friendliness 15/100

    grobidOrg/grobid#1115 · 1 comment ·

    Maintainers usually reply within 1 day

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