Hexcalibur

Hexcalibur is a browser-based pixel-art editor for voxel-game textures, aimed at artists and developers who need to manage related assets and check how textures wrap around 3D shapes. Its pack workflow and engine-aware exports give it a clear niche, though the free plan’s eight-asset cap makes it better for small projects than growing libraries.

Overview

Hexcalibur pairs pixel-art tools with a rotating-cube preview and packs that group textures, a palette and references. Keeping a shared palette as you switch assets is useful when a project needs visual consistency across several blocks. The free plan previews a single cube; Pro adds multi-shape previews, including an L-stack shape for checking adjoining faces.

Free artwork stays in the browser rather than being uploaded. Pro adds cloud sync hosted on Supabase, and sync can be disabled per device. A free Axidus account is required, but no payment card is needed to create one. PNG, JPEG and WEBP imports are supported up to 4 MB per image. The maker says it does not sell or share users’ art or use it to train anything.

Key features

The animation timeline supports onion skinning and named tags. Free users can export animated GIFs, but the five-frame ceiling confines that plan to brief sequences. Pro adds formats including APNG, sprite sheets and WebM, making it the stronger fit for artists who need more export options or longer animations.

Export presets cover 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 beyond those named targets. This engine-aware range is a practical advantage for voxel projects; it is less compelling if you only need a general-purpose pixel-art editor.

Tilemap tools let users import or draw tilesets, stamp single or multi-tile blocks, edit tiles used by maps, and replace or clear a tile throughout a map. That makes Hexcalibur relevant to map-making as well as texture painting, although its advertised workflow remains centered on voxel and pixel-art projects.

Pricing

The Free plan costs nothing and includes one pack, up to eight assets, a single-cube preview, five animation frames and animated GIF export. It is a useful way to try the workflow, but the asset and pack limits leave little room for a larger project.

Monthly costs $5 a month, billed monthly, and can be canceled any time. It removes the pack and asset caps and adds multi-shape previews, cloud sync and all engine export presets. Annual costs $29 a year, with the stated saving of $31 a year, or like six months free; it includes the same Pro features and suits users comfortable paying for a year at once.

Lifetime costs $59, paid once at limited-time founder pricing. It includes everything in Pro and every future Pro update, with no renewals. Hexcalibur has no free trial, so the free plan is the available no-payment starting point; a paid plan makes sense when its limits block the work.

Platforms

Hexcalibur runs in modern browsers, including Chrome, Edge, Safari and Firefox, on Windows, macOS, Linux and Chromebook. 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 anyone who needs to draw or edit on a phone.

Who it's for

Pixel artists and voxel-game developers, especially creators of Minecraft textures or projects using its listed engine exports, are the clearest audience. Pack-level palettes, tilemap tools and the 3D wrap preview support a connected texture workflow. Artists looking for broad mobile support or room for many assets without paying should choose another tool.

Pros and cons

• Pro: The pack workflow keeps textures, references and a shared palette together, helping maintain consistency across related assets.
• Pro: The 3D preview and named engine presets make it easier to check voxel textures and prepare exports for supported game workflows.
• Pro: Free work stays in the browser, and the maker says users’ art is not sold, shared or used for training.
• Con: Free is limited to one pack, eight assets and five animation frames, which restricts larger projects.
• Con: The editor is designed for desktop browsers and does not support phones.
• Con: Using the editor requires a free Axidus account, even though no payment card is needed.

Alternatives

Pix2D is a free, open-source alternative for readers who want an option spanning Android, desktop operating systems and the web. Pixelc also offers a free, open-source option across Android, desktop and web, with Android Premium sold separately at an unstated price.

Pixelorama is worth considering for readers who want free, open-source software across Windows, Linux, macOS and Android. void◆sprite is another free-download choice, but it is alpha software and requires manual updates.

8bit.page suits readers seeking a free web option for creating, animating and exporting pixel art, with private artwork and retained cloud project versions sharing online storage. LibreSprite is a free, open-source choice for Windows, macOS and Linux.

Picotap is a free alternative for Android, iOS, macOS and web users who can accept ads in the artwork list and when closing the editor; its one-time ad-removal price is unstated. Piskel is a free browser-based option for Windows, macOS, Linux and web users who prefer an open-source tool.

Browse more options in Pixel Art Software.

Verdict

Choose Hexcalibur if you make voxel textures on a desktop and value a shared pack palette, a 3D wrap preview, tilemaps or presets for your engine. Its focused workflow is the reason to pick it over a general pixel-art tool; the main reasons to look elsewhere are the free plan’s small capacity and the lack of phone support.