MiConvert vs FreeConvert
A FreeConvert alternative for 3D models, CAD and OFD
FreeConvert is quick for video, audio, images and documents and handles very large files on its paid plans. It has no 3D model, CAD drawing or OFD converters, which is what MiConvert is built around. This page compares the two on the conversions and limits we checked on 13 November 2026.
Conversions people ask for
| Conversion | FreeConvert | MiConvert |
|---|---|---|
| STEP to STLCAD part to a 3D-printable mesh | No | Yes |
| STL to OBJ3D print file into Blender or a game engine | No | Yes |
| OFD to PDFChinese e-invoices and official documents | No | Yes |
| DWG to PDFAutoCAD drawing to a printable sheet | No | Yes |
| HEIC to JPGiPhone photos for everything else | Yes | Yes |
We opened FreeConvert's page for each pair on 13 November 2026. STEP to STL, STL to OBJ, OFD to PDF and DWG to PDF returned "Page not found"; HEIC to JPG is there.
Limits and prices
| FreeConvert | MiConvert | |
|---|---|---|
| Free use | 20 conversion minutes a day, at most 5 minutes per file, no account needed | 10 conversions an hour, no account needed |
| Largest free file | 1 GB | 50 MB without an account, 100 MB with a free account |
| Paid plans | From $12.99 a month (1,500 conversion minutes, 1.5 GB files) to $29.99 (5 GB files) | Plus $4.99 a month for 200 MB files, Pro $9.99 a month for 1 GB files |
| Where files are processed | On FreeConvert's servers | On MiConvert's servers; the lithophane maker runs on your device |
FreeConvert's figures are from its own website on 13 November 2026 and may have changed since. MiConvert plans and prices
Where FreeConvert is better
- Much larger files on paid plans: up to 5 GB, and up to 20 GB on its on-demand plan, against MiConvert's 1 GB.
- GPU video encoding on its top plan, for long videos.
- Up to 100 files at a time on paid plans, against MiConvert's 50 on Pro.
- More payment methods, including Apple Pay, Google Pay and Alipay.
Where MiConvert is better
- 3D models: STEP, IGES, STL, OBJ, 3MF, GLB, FBX, PLY, DAE and more, with a 3D preview.
- CAD drawings: DWG to PDF, SVG, PNG, JPG and DXF, and DXF to 3D mesh formats such as STL and OBJ.
- OFD, the Chinese fixed-layout format used for e-invoices, to PDF.
- Lower monthly prices: Plus is $4.99 and Pro $9.99, both below FreeConvert's cheapest plan at $12.99.
- Browser tools that never upload your file, such as the lithophane maker.
Questions
Can FreeConvert convert STEP or STL files?
Not when we checked on 13 November 2026: its STEP to STL and STL to OBJ pages returned "Page not found". MiConvert converts STEP, IGES, STL, OBJ, 3MF, GLB, FBX and other 3D formats to each other.
Which one is free?
Both have a free tier without an account. FreeConvert gives 20 conversion minutes a day; MiConvert gives 10 conversions an hour for files up to 50 MB, or 100 MB with a free account.
When is FreeConvert the better choice?
For very large videos: its paid plans take files up to 5 GB and use GPU encoding. For 3D, CAD and OFD files, and for lower monthly prices, use MiConvert.
Also compared: MiConvert vs CloudConvert
FreeConvert is a trademark of its owner. MiConvert is not affiliated with or endorsed by FreeConvert.