Convertpoly

What Convertpoly is

Convertpoly is a web-based toolkit for converting, compressing, rendering, and inspecting 3D models. It reads 75 3D formats and writes 19. Files are processed in the browser on your machine, without an upload step. Once the page has loaded, the tools can continue working offline. No installation or account is required.

The converter previews a model before conversion and saves the result to your downloads folder. The viewer shows scene hierarchy, mesh and material details, and texture map previews; it also lets you move, rotate, or scale a model and undo changes. For rendering, it exports still images as PNG, WebP, or JPEG, and can package multiple frames in a numbered ZIP. Image output can reach 8192 pixels on a side, subject to your GPU allocation.

The free plan costs nothing and has no imposed file-size limit. Browser memory is the practical constraint: the FAQ says a tab can generally handle models up to a few hundred megabytes. Format support also affects what carries through conversion: STL and PLY do not store textures, while OBJ, STL, and PLY do not store animation.

Who it suits

Convertpoly suits people who need to convert, compress, render, or inspect 3D files in a browser, including those who receive files their usual software will not open. It is also a fit for users who want local processing without installing software or creating an account.

Limits

The free plan has no imposed file-size cap, but browser memory is the practical limit; a tab can generally handle models up to a few hundred megabytes. Image output is subject to GPU allocation, and some formats do not store textures or animation.

Getting started

1. Open https://www.convertpoly.com/ in a web browser.
2. Load the page; no installation or account is required.
3. Choose a conversion, viewer, compression, or rendering tool.
4. Preview a model before converting, then save the result from the downloads folder.

Verdict

Choose Convertpoly if you want browser-based 3D conversion and inspection with local processing and no account or installation. Its viewer and renderer add ways to examine and export models. Look elsewhere if your workflow needs textures or animation preserved in formats that do not carry them, or if browser memory cannot handle your models.