Add versions to the Source Shelf
Bring A, B, C, D, or other plain-text versions into one session.
How DiffDraft works
A deliberate path from source versions to final text.
DiffDraft is designed for reviews where comparing is only the beginning. The center Compose Draft is the place where choices become the final version.
Choose Active Left and Active Right
Focus on two versions at a time while the others remain nearby.
Compose in the pinned center draft
Write the final text in the Compose Draft instead of editing source files.
Cherry-pick Left, Right, or Both
Take useful hunks into the draft, then keep rewriting directly.
Keep rows stable while editing
Manual draft rows and source-lane gaps stay aligned through long reviews.
Switch sources without losing the draft
Change the active pair while the Compose Draft stays intact.
Save sessions and snapshots
Use save slots and checkpoints to pause and continue later.
Export clean final text
Copy or save the Compose Draft as plain text, without UI markers or provenance badges.
Source Shelf
Keep every version nearby, then focus on two at a time.
Add multiple plain-text versions to the Source Shelf instead of juggling windows. Choose the active left and right sources, then keep the rest close for the next pass.
More than a two-pane diff
Keep several versions close without turning the workspace into a cluttered N-way merge screen.
Active left and right sources
Focus Canvas shows Active Left Source | Compose Draft | Active Right Source.
Switch without starting over
Change the active source pair without clearing the Compose Draft.
Focus Canvas
The Compose Draft stays pinned while the sources change.
The working view narrows to Active Left Source | Compose Draft | Active Right Source. Source lanes stay readable, and the center draft remains the text you are deliberately building.
Row-aware editing
Source rows, draft rows, manual rows, and intentional gaps stay visually aligned while you edit.
Manual draft rows
Rows you add manually remain draft-only instead of being forced into a source lane.
Source-lane gaps stay visible
Source lanes show missing-source context instead of pretending every draft row came from a source.
Workflow details
The review stays readable while the draft keeps moving.
Each part of DiffDraft protects a different piece of the composition workflow: choosing source text, preserving context, checking provenance, saving progress, and leaving with clean text.
Cherry-pick and edit
Take useful text, then write normally.
Use Take Left, Take Right, or Take Both to move a hunk into the Compose Draft. Taking a hunk changes only the draft, so the source lanes remain reference material.Direct draft editing
After taking text, edit the Compose Draft with normal writing behavior.
Aligned manual rows
Custom draft rows remain in place while the left and right lanes show source gaps.
Switch sources
Compare a new pair without clearing the center draft.
When A versus D becomes the useful review, switch the active pair and keep composing. The center draft is not reordered or discarded.Active pair changes
The Focus Canvas updates the left and right source lanes around the same draft.
Draft remains the object of value
The source shelf supports exploration without making the draft disposable.
Provenance and review
See where draft text came from.
Provenance badges help distinguish source-derived, mixed, custom, and unresolved draft sections, so reviewers can spot what still needs attention.Review confidence
Badges provide context while you work without becoming part of the final export.
Unresolved stays visible
Draft areas that still need placement or review can remain marked until you resolve them.
Save slots and snapshots
Pause a messy review and return later.
Session save slots preserve sources, draft, active pair, provenance, review state, compare options, and snapshots so unfinished work can reopen with context.Checkpoints before major edits
Manual snapshots give you a checkpoint before a risky rewrite.
Manage saved sessions
Restore, duplicate, and manage saved sessions when the workflow needs another branch.
Clean export
Leave with the final draft, not the review UI.
Copy or save the Compose Draft as plain text. UI markers, row labels, and provenance badges stay out of the exported final text.Plain text first
The export emphasizes the final wording, not the mechanics used to review it.
Portable session package
When needed, export a session package with embedded source snapshots for unfinished work.
Local-first, plain-text first
A Mac workspace for real text reviews.
DiffDraft centers the work on your Mac and treats Markdown, JSON, YAML, CSV, XML, and code-like text as plain text.
No account needed to compare, compose, save, and export.
Source files are not silently modified by comparison or compose actions.
Final draft export uses clean Compose Draft text.
Useful for marketing copy, contract clauses, policies, docs, release notes, prompts, localization review, notes, scripts, proposals, and research drafts.
Mac App Store
DiffDraft on the Mac App Store.
Use the App Store link for DiffDraft, or keep support, privacy, and terms close while you work.