Hexcalibur

Hexcalibur is a browser-based pixel-art editor for voxel-game textures. It suits desktop artists and developers who need to manage related textures and prepare them for game engines. Its pack workflow and shape previews are compelling for that niche; the free tier’s tight asset and animation limits can push larger projects toward a paid plan.

Overview

Hexcalibur pairs pixel-art tools with a rotating-cube preview and packs that group textures, a palette, and references. The shared palette carries across assets in a pack, which helps keep related textures consistent. Free users get a single-cube preview; Pro adds multi-shape previews, including an L-stack for checking how artwork wraps across adjoining faces.

Free work is saved in the browser and is not uploaded. Pro adds cloud sync hosted on Supabase, which can be disabled per device. A free Axidus account is required, but no card is needed to create one. PNG, JPEG, and WEBP imports are capped at 4 MB per image.

Key features

The animation timeline includes onion skinning and named tags, useful for organizing and comparing frames. Free accounts are limited to five frames and animated GIF export; APNG and sprite sheets are supported, while WebM and additional formats are part of the paid offering. The free cap is suited to brief loops, not longer animation work.

Export presets target Minecraft Java and Bedrock, Tiled, and a TexturePacker JSON-Hash atlas consumed by Phaser, Babylon, Godot, Three.js, and Unity. Raw per-face ZIP and a custom exporter add flexibility. These integrations make Hexcalibur more than a general pixel editor for creators building voxel assets for those ecosystems.

Tilemap tools support importing or drawing tilesets, stamping single or multi-tile blocks, editing tiles used on maps, and replacing or clearing a tile throughout a map. That map-aware editing can save repetitive changes when a tile needs revision across a project.

Pricing

The Free plan costs nothing. It includes one pack, up to eight assets, single-cube 3D preview, five animation frames, and animated GIF export. It is a reasonable way to try the workflow, but the asset ceiling limits how much of a larger project can stay organized in one place.

Monthly costs $5 a month, billed monthly, and can be canceled any time. It removes pack and asset limits and adds multi-shape preview, cloud sync, and all engine export presets. Annual costs $29 a year and includes the same Pro features; it is the lower-cost fit for users who expect to keep using the tool over the year. Lifetime costs $59, paid once at limited-time founder pricing, includes everything in Pro and future Pro updates, and has no renewals.

There is no free trial. Paid plans make most sense for creators who need larger asset libraries, multi-shape checks, sync, or the full set of engine presets; occasional users can stay with the free tier if its caps fit their work.

Platforms

Hexcalibur runs in modern browsers on Windows, macOS, Linux, and Chromebook, including Chrome, Edge, Safari, and Firefox. It is designed for desktop use; tablet and touch support is on the roadmap, and phones are unsupported. That makes it a poor fit for artists who need to work on a phone or touch-first device.

Who it's for

Hexcalibur is best for pixel artists making voxel textures and game developers who want packs, map tools, shape previews, and exports aligned with supported engines. Artists seeking a broad mobile workflow or a generous free animation allowance should look elsewhere. The maker says it does not sell or share user art or use it to train anything; it also says bug reports go directly to a human and new features arrive regularly.

Pros and cons

• Pros: Packs preserve a shared palette across related assets, helping maintain consistency.
• Pros: Cube and multi-shape previews help check texture wrapping before export.
• Pros: Tilemap editing and engine-aware presets target practical voxel-game workflows.
• Cons: Free accounts are limited to one pack, eight assets, and five animation frames.
• Cons: Free storage stays in the browser; cloud sync requires Pro.
• Cons: Desktop browser focus excludes phones and does not yet offer tablet or touch support.

Alternatives

For a broader pixel-art toolset, browse Pixel Art Software.

• Pixelorama is a free and open-source alternative with builds for Windows, Linux, macOS, and Android.
• Pixelc is a free and open-source alternative; Android Premium is a separate purchase.
• 8bit.page lets users create pixel art, animate, and export for free, with private artwork and retained cloud project versions sharing online storage.
• Pix2D is free and open source, though its feature set and limits are not described.
• PixelWall offers a free studio with drawing, animation, scripting, tilemap editing, and frame exports.
• void◆sprite offers an alpha editor with a free download and optional name-your-own-price payment.
• Picotap includes every feature in its free plan, with ads in the artwork list and when closing the editor.
• Pixel Studio supports Android, iOS, macOS, and Windows; its free version contains ads, while PRO costs $12.99, paid once.

Verdict

Choose Hexcalibur if you make voxel-game textures on a desktop and value a pack-based workflow, shape previews, tilemap tools, and engine-specific exports. Its focus is the main reason to choose it; the free plan’s small limits and the paid requirement for cloud sync are the clearest reasons to consider another editor.