01 Side by side
Judge hierarchy and the overall read
Start here. Compare silhouette, major masses, facial or lettering landmarks, and whether the second pass changed the visual hierarchy you intended to preserve.
Free stencil revision review
Tattoo Stencil Version Compare
Put two revisions of the same stencil under one review surface before you approve, print, or use the final file. Compare them side by side, overlay the linework, blink A and B, inspect the difference view, then export one comparison sheet.
Free to useNo accountFiles stay in your browserPNG comparison export
Version review workspace
Load two versions of the same stencil, align Version B when exports differ, then inspect what changed before approval or print prep.
Version A
Drop an image here
PNG, JPG, or WebP. Up to 15 MB and 30 MP.
Version B
Drop an image here
PNG, JPG, or WebP. Up to 15 MB and 30 MP.
Add both versions to unlock overlay, blink, difference, and the comparison-sheet export.
Review the revision, not a score
Use each comparison mode for a different kind of change.
Two files can look nearly identical at a glance while small line, spacing, lettering, or silhouette changes matter to the final stencil. The tool exposes those changes without pretending that pixel difference equals tattoo quality.
02 Overlay
Find moved edges and spacing changes
A 50% overlay makes doubled edges easy to see. Align the files first when crop or scale changed, otherwise export geometry can look like a design revision.
03 A / B blink
Catch additions, removals, and local drift
Toggle A and B manually for deliberate review, or use auto blink when motion is comfortable. Reduced-motion preferences keep the automatic animation off.
04 Difference
Use the heat as a locator, not a verdict
Highlighted pixels tell you where the rendered files differ. Antialiasing, mirroring, crop, scale, and alignment can all create difference, so return to the artwork before deciding what changed intentionally.
Intent boundaries
Version choice, print risk, physical size, and generation are separate jobs.
Keeping these owners separate makes the result more useful. Version Compare helps choose between revisions. The other tools begin after or before that decision.
Version Compare
What changed between A and B?
Owns revision review: two design files, visual alignment, overlay, blink, difference, and a comparison artifact.
Print Checker
Will the chosen file expose print-side risks?
Use one final stencil to inspect source sampling, page fit, fine detail, threshold sensitivity, and dense regions at intended size.
Open Print CheckerSize & Print
What physical size reaches paper?
Set centimetres or inches, paper fit, calibration, and true-size output only after the revision is settled.
Open Size & PrintGenerate
Need a stencil version first?
Generate creates a stencil from a source reference. It does not own the later two-version approval review.
Generate a stencilFast revision preflight
Align first, inspect second, approve last.
The useful output is a review record that keeps Version A, Version B, overlay, difference, and alignment context together.
01
Load A and B
Use the two actual revision files you are deciding between. PNG, JPG, and WebP are handled locally.
02
Correct export drift
If B was exported with a different crop, scale, orientation, or mirror state, use the alignment controls before reading the difference.
03
Inspect in layers
Start side by side, then use overlay or blink for movement. Use Difference as a locator for areas that deserve closer review.
04
Export the decision sheet
Save a PNG with A, B, the overlay, the difference view, and the alignment settings before moving the chosen file into print prep.
What the tool cannot conclude
A visible difference is not automatically a meaningful tattoo difference.
The comparison is intentionally descriptive. It helps you locate changes, but it cannot infer artist intent, predict healed results, approve a design, or certify print readiness.
Raster exports can differ even when the underlying artwork is effectively unchanged. Antialiasing, a one-pixel crop shift, resampling, compression, or a different export size can all light up the Difference view. Use the B alignment controls to remove obvious framing drift, then inspect the underlying linework.
For line-heavy stencils, pay special attention to removed or added intersections, changes in negative-space width, lettering counters, small internal marks, and edges that moved enough to change the intended silhouette. Those are artist-review questions, not automatic pass/fail rules.
Once the final revision is chosen, move to the Tattoo Stencil Print Checker for file-side print risks and the Size & Print Calculator for physical dimensions and 1:1 output.
Related tattoo tools
Choose the revision, then prepare the final file.
Version Compare ends at revision review. Move to print checking or exact-size output only after the artist has chosen the final stencil.
View all tattoo tools01Placement Measurement SheetTurn artist-recorded body-area, size, orientation, and landmark measurements into a clean A4 or US Letter planning PDF with an optional local design thumbnail.A4 + US Letter PDFcm / inches + landmarksBrowser-local thumbnail02Design SymmetryCompare one design with its own reflection around an artist-chosen axis, preserve either side as the reference, inspect overlay or pixel differences, and export a review PNG.Adjustable axisLeft / right reflectionDifference PNG03Design Review SheetPackage one exact tattoo artwork version, review status, target size, orientation, placement summary, and final notes into a browser-local review PNG or clean print sheet.One design statePNG + clean printBrowser-local
Practical guides
Version compare FAQ
The comparison stays visual and deliberately honest.
These limits prevent a revision tool from becoming a fake quality score or a duplicate of the print and sizing owners.
It is a revision-review tool for two versions of the same stencil or design. Load Version A and Version B, compare them side by side, overlay them, blink between them, inspect a difference view, and export a comparison sheet before you approve a final version.
No. It highlights pixel and geometry changes after the two files are aligned. A highlighted area can come from a real design edit, different cropping, scaling, mirroring, antialiasing, or another export difference. The artist still decides whether a change is useful.
No. Version Compare answers what changed between two revisions. Print Checker inspects one chosen final file at its intended physical size for file-side print risks such as source sampling, page fit, threshold sensitivity, fine detail, and dense regions.
No. Use Version Compare while choosing the revision. After the final file is selected, use the Size & Print Calculator to set physical dimensions and prepare true-size output.
No. PNG, JPG, and WebP files are read and compared locally in the browser. The comparison PNG is also generated locally and the images are released from the session when you replace them, reset the tool, or leave the page.