Download trial . v5.3

Everything you need to evaluate AjaxUploader 5.3 locally.

Download the current AjaxUploader 5.3.9 Web Forms release package directly from this site. Includes the DLL, the working demo pages, the Companion broker module, signer reference projects (S3, Azure, GCS), and the full deployment doc set.

New in 5.3 Companion broker 6 cloud sources Headless React / Vue / Svelte / Angular hooks Smart-crop image editor AVIF / WebP output

What is included

Trial package contents

ASP.NET Web Forms demo pages - including the full v5.3 showcase (Companion broker, 6 cloud sources, smart-crop image editor, headless hooks, GCS, encryption, cross-tab, offline)
AjaxUploader.dll (File version 5.3.9.819) and the sample-site binaries
The multipleupload/server/companion self-hosted OAuth and file-proxy broker module (Dropbox, Box, Google Drive, OneDrive)
Headless framework adapters: useUploader() for React and Vue, a use:uploader action for Svelte, and an UploaderService for Angular
Reference signer projects for S3, Azure Blob, and Google Cloud Storage (IS3Signer / IAzureSigner / IGcsSigner) plus the new IImageTransformer extension point
Setup and deployment docs in /docs (Quick Start, License, Deployment Checklist)
Service worker assets for offline-mode queueing
Locale resource bundle across 28 locales (incl. RTL Arabic, Hebrew, Persian)
Temp upload folder scaffolding in App_Data\UploaderTemp

Download package Official product site Browse integrated demos

Current file: AjaxUploader-5.3.9-download-package.zip. SHA-256: 78828630447b89f56c15059a09020d74d6700de0a0290eb3fe0ffc9a30636843. Coming from 4.x? See the upgrade page.

Licensing

Localhost is friction-free

The bundled license note says you do not need a license file for localhost, 127.0.0.1, or ::1. For staging or production, place ajaxuploader5.lic in the application root, bin, licenses, or App_Data.

Need the full license instructions? Open docs/02-License-Installation.txt.

Deployment note

Before you move beyond local testing

Make sure the handler entry exists, maxRequestLength and maxAllowedContentLength fit your file sizes, and the temp upload folder is writable by the application pool identity.

ASP.NET Core?

Use CoreUpload for Core projects

The local AjaxUploader quick-start notes explicitly redirect ASP.NET Core applications to CoreUpload instead of the Web Forms control.

Open CoreUpload