kpdecker/jsdiff

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A javascript text differencing implementation.

Is kpdecker/jsdiff beginner-friendly?

In the last 30 days, kpdecker/jsdiff merged 0 of 12 pull requests from outside contributors, and its maintainers usually reply within 1 day. No beginner-friendly issue is open right now; the list below has the other issues we hold for it.

Stars
9.2k
Forks
555
Open beginner issues
0
Indexed issues
20
Avg merge
1d 9h
Merged PRs (30d)
5
Dominant language
JavaScript
License
BSD-3-Clause
Last GitHub push
Oct 27, 2026
Latest indexed
Sep 20, 2026
Contributing guide
No code of conduct
Beginner labels
No beginner labels indexed

How to contribute to kpdecker/jsdiff

  1. Read the contributing guide first: it says how the maintainers want changes proposed, tested and reviewed.
  2. Your contributions will be published under the project's BSD-3-Clause license.
  3. Follow the repository to hear when a new beginner-friendly issue opens, or look through the other issues below.
Beginner friendly Everything
Open All

Issues somebody may already be working on are listed last. List everything by date

  • typescript error when comparing two arrays with different types
    Open
    • Is something wrong?

    Difficulty 2/5 1-3 hours Newbie friendliness 76/100

    kpdecker/jsdiff#741 ·

    Maintainers usually reply within 1 day

  • Migrating to ESM only
    Open
    • Is something wrong?

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

    kpdecker/jsdiff#703 · 1 reaction ·

    Maintainers usually reply within 1 day

  • (3398) Consider enabling GitHub Private Vulnerability Reporting (PVR)
    Open
    • Is something wrong?

    Difficulty 1/5 Under an hour Newbie friendliness 45/100

    kpdecker/jsdiff#684 · 1 comment ·

    Maintainers usually reply within 1 day

  • reversing a text diff?
    Open
    • Is something wrong?

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

    kpdecker/jsdiff#629 · 7 comments ·

    Maintainers usually reply within 1 day

  • Improve integration with `react-diff-view` and investigate if `unidiff` can be entirely obsoleted and deprecated. (Originally: "Is there a way to remove the `======` separator that appears at the top of diffs?")
    Open
    • Is something wrong?

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

    kpdecker/jsdiff#624 · 6 comments ·

    Maintainers usually reply within 1 day

  • Performance improvement suggestion
    Open
    • Is something wrong?

    Difficulty 4/5 3-5 days Newbie friendliness 38/100

    kpdecker/jsdiff#516 · 1 comment · 3 reactions ·

    Maintainers usually reply within 1 day

  • Support diffs with substitutions
    Open
    • Is something wrong?
    major-new-feature

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

    kpdecker/jsdiff#475 ·

    Maintainers usually reply within 1 day

  • Compare with diff-match-patch
    Open
    • Is something wrong?
    documentation performance

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

    kpdecker/jsdiff#453 ·

    Maintainers usually reply within 1 day

  • Suboptimal (O(D^2)) memory usage
    Open
    • Is something wrong?
    performance

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

    kpdecker/jsdiff#396 · 10 comments · 3 reactions ·

    Maintainers usually reply within 1 day

  • Feature Request: ignorePunctuation
    Open
    • Is something wrong?
    diffWords behaviour minor-feature-request

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

    kpdecker/jsdiff#221 · 2 comments · 4 reactions ·

    Maintainers usually reply within 1 day

  • 3-way merge
    Open
    • Is something wrong?
    merge

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

    kpdecker/jsdiff#181 · 14 comments · 1 reaction ·

    Maintainers usually reply within 1 day

  • Feature Request: Apply to a change to a String
    Open
    • Is something wrong?
    major-new-feature

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

    kpdecker/jsdiff#176 · 2 comments · 1 reaction ·

    Maintainers usually reply within 1 day

  • How to minimize the number of insertions?
    Open
    • Is something wrong?
    major-new-feature

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

    kpdecker/jsdiff#167 · 2 comments ·

    Maintainers usually reply within 1 day

  • No function to apply diffs from `diffChars`, `diffWords`, etc.
    Open
    • Is something wrong?
    major-new-feature

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

    kpdecker/jsdiff#95 · 2 comments · 4 reactions ·

    Maintainers usually reply within 1 day

  • Near Endless Loop calling execEditLength
    Open
    • Is something wrong?
    performance

    Difficulty 4/5 3-5 days Newbie friendliness 42/100

    kpdecker/jsdiff#79 · 4 comments · 2 reactions ·

    Maintainers usually reply within 1 day

  • Applying a patch with a fuzzFactor can be very very slow
    Possibly taken Open
    • Is something wrong?
    performance

    Difficulty 4/5 3-5 days Newbie friendliness 48/100

    kpdecker/jsdiff#692 · 2 comments ·

    Maintainers usually reply within 1 day

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