Multiple Uploaders/Downloaders comparison
- MultiPowUpload - Flash file uploader
- JavaPowUpload - Java file uploader and downloader
- Ultimate Uploader - Silverlight based file uploader
| MultiPowUpload | Ultimate Uploader | JavaPowUpload | ActiveXpowUpload | |
| Browsers support Wiki | >98% | >98% | >98% | Only Internet Explorer 32-bit or 64-bit (~50%) |
| OS support Wiki | >97% (Win+Mac+Linux) | >97% (Win+Mac+Linux) | >97% (Win+Mac+Linux) | >90% (Windows only) |
| Framework, Runtime requirement | Adobe Flash 10 | Microsoft Silverlight | Oracle JRE | Nothing |
| Multiple files upload |  |
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| Folders upload |  |
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| Multiple files & folders download (resumable) | |
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Over HTTP or FTP |
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| Uploading standard | Classic (RFC 1867), one file per request or by chunks. | Chunks, one chunk per request. | Classic (RFC 1867), one or few files per request or Chunks. Over HTTP or FTP | Classic (RFC 1867), few files per request. |
| Files drag and drop | |
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| Resumable upload | |
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| File upload examples | PHP, ASP.NET, ASP, Perl, ColdFusion, JSP | PHP, ASP.NET | PHP, ASP.NET, ASP, Perl, ColdFusion, JSP | PHP, ASP.NET, ASP, Perl, ColdFusion, JSP |
| Server special requirements | |
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| Max uploaded file size | 2 Gb | Unlimited | Unlimited | 2 Gb |
| Interface and functionality customization | High |
Medium |
High |
Medium |
| Multilingual interface customizable | |
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| Javascript API | |
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| SSL (HTTPS) support | |
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| Images thumbnails preview | |
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| Cookies/Session support | Workaround for non-IE browsers required (not required for chunk upload) |
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| Windows authentication support | |
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Requires to enter credentials |
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| License cost | $179 single domain | $179 single domain | $179 single domain | $179 single domain |
| Minor upgrades | free | free | free | free |
| Major upgrades | 50% discount | 50% discount | 50% discount | 50% discount |