Convert ASCII Grid to WEBP online for free — right in your browser. No upload, no sign-up, batch conversion, coordinate systems and attributes preserved.
Efficiently convert from ASC to WEBP format
All processing is done locally in your browser
Output standard WEBP format
Convert asc to webp online for free — right in your browser. No upload, no sign-up, batch conversion, coordinate systems and attributes preserved.
ASCII Grid (also AAIGrid) is a plain-text raster format by ESRI. The file header contains geographic metadata (cols, rows, origin, cell size, NoData), and the body stores each cell value as a space-separated numeric matrix. Highly readable, often used for teaching and small-scale data exchange.
WebP is a modern image format developed by Google, supporting both lossy and lossless compression plus an Alpha channel. Compared to JPEG/PNG, WebP produces smaller files at equivalent quality — ideal for efficient web transfer of raster tiles and map imagery.
Converting ASCII Grid to WEBP is one of the most common workflows in GIS. ASCII Grid data usually comes from desktop GIS software, government open-data portals, or data exchange with partners, while WEBP is what modern tools, web maps, and platforms expect. This converter bridges the two: it reads your ASCII Grid files, keeps geometry and attributes intact, and writes clean WEBP output — entirely in your browser, so your data never leaves your device.
No. The conversion runs entirely in your browser using WebAssembly — your files never leave your device.
Yes, completely free with no sign-up and no usage limits.
By default the output keeps the source coordinate system. If your ASCII Grid file uses a projected CRS (like UTM), you can search any EPSG coordinate system by keyword or code and reproject in one step. Note: output formats that require WGS84 by specification (KML, KMZ, GPX) always reproject to WGS84 automatically.
Yes — drop several ASCII Grid files at once and each one produces its own WEBP output.
Upload your ASCII Grid file — drag and drop it onto the page, or browse from your device. You can add several files at once for batch conversion.
The conversion runs automatically in your browser. No upload, no server — your data stays on your device the entire time.
Download the WEBP file. Each input produces its own output, ready to use in your GIS, web map, or archive.