v0.1.2245 Sep 2026·Rendering

Right-to-left layout, laid out as an exact mirror

Right-to-left languages now lay out correctly across the three ways modern pages are built. If you read Arabic, Hebrew, Persian or Urdu - or visit any site that does - flexible rows now start from the right and flow left, grids number their columns from the right, and tables place their first column at the right, cells still meeting edge to edge. The trick is that right-to-left is computed as an exact mirror of the normal layout, not a separate code path - the usual source of subtle RTL bugs - so it is the precise reflection down to the pixel. Left-to-right pages are unaffected.

Parity with the reference browser

74overall, as of v0.1.355

Web APIs / DOM surface53

Security architecture66

GPU / graphics acceleration68

DevTools / extensions72

Networking85

Media85

Accessibility85

Real-world site compatibility99

HTML parsing100

CSS parsing + selectors100

Layout: block / flex / grid / tables / writing-modes100

Paint + visual100

JavaScript language100

JavaScript performance (JIT)100

HTML parsing100

What changed 4 changes

Rendering	Flex rows lay out right-to-left. A row of items (nav bars, toolbars, button groups) in an RTL context now packs from the right edge and flows left, and an item pushed to the 'end' lands on the left where an RTL reader expects it. Left-to-right and row-reverse still work, and combining RTL with row-reverse cancels back to normal order, exactly as the standard says.
Rendering	Grid columns are numbered from the right. In an RTL grid, column one sits at the right edge and auto-placed items fill leftward, so cards and dashboards mirror cleanly; a few items in a wide grid still fill it correctly.
Rendering	Tables lay their columns right-to-left. The first column sits at the right and the rest follow leftward, with cells still tiling edge to edge and no seams between them - including fixed-layout tables.
Rendering	RTL is a provable mirror of LTR. Because right-to-left is implemented as a reflection of the normal layout rather than a forked second path, every box lands at the exact mirror position, verified down to the pixel - so RTL automatically inherits every layout fix and never drifts out of step.