If you have ever installed an application just to look at one file: OnlineDocumentViewer renders it in a browser tab instead. PDF, Word, Excel, PowerPoint, CAD drawings, Photoshop PSDs — 70+ extensions across seventeen viewers, free, with no plugin, no download and no account.
Core Benefits of the Browser-Based CAD and PSD Viewer
| Feature | What It Means for You |
|---|---|
| Zero install, zero registration | Upload and read, on a desktop, tablet or phone. No account, no paid tier. |
| Multi-format support | 70+ extensions including DWG/DXF/DGN, PSD, EPUB, SVG and email formats (EML, MSG, EMLX). |
| Server-side rendering | The browser gets pages, not the original file — which is why a DWG opens on a phone and nothing in the document executes on your machine. |
| Deleted afterwards | The upload goes when the session ends. No library, no second copy. |
What you get on an open document
- Instant access – no installation queue; the document renders in the browser.
- Page navigation, zoom, fit to window and print.
- Search – on documents that carry a text layer. A scanned page is a picture of text and returns nothing, because there is no OCR here.
Specialized Features for Technical Professionals
Browser-Based CAD Viewer for Architects and Engineers
- Formats: DWG, DXF and DGN, up to 10 MB.
- Layer control – switch individual layers off without opening AutoCAD.
- Measurement – distance, angle and area, taken on the open drawing.
- Vector rendering – line weights, hatches and dimension text hold at every zoom level.
Photoshop PSD Viewer Without Adobe
- The composite as saved – masks, blend modes and adjustment layers already applied. There is no layer panel and no way to toggle layers.
- Zoom and pan – inspect detail at full resolution, up to 25 MB per file.
- Nothing to install – no Photoshop, no plugin. PSB, the large-document format, is not accepted.
This no‑install document viewing solution streamlines client reviews, remote teamwork, and classroom assignments.
Who ends up here
| Audience | Typical scenario | What they get |
|---|---|---|
| Students and educators | Lecture PDFs and PPTX on a low-spec laptop | Free, instant, in any browser |
| Legal teams | Contracts, email archives (EML, MSG) and scanned TIFFs | Fast loading and printing; text search on documents that carry a text layer, and nothing on a scan |
| Design studios | Showing a PSD comp or a DWG to a client | A preview without an Adobe or Autodesk licence at the other end |
| Remote workers | Spreadsheets and project plans (MPP) | Read them on a machine with neither Excel nor Project installed |
Getting started
- Open the viewer hub and pick the page for your format, or drop the file on the home page.
- Drag and drop the file.
- Read it, then close the tab. The file is deleted from the server.
One file per upload. No ZIP, no folder, no queue.
Where the ceiling is
Set per format, not per site: 25 MB for PDF, PSD, Visio, TIFF, EPUB and images; 20 MB for Excel, PowerPoint and Project; 15 MB for Word and RTF; 10 MB for CAD and email; 5 MB for HTML, XML and plain text.
Common Questions
Q: Can I open a password-protected file? A: There is a password field under the upload box. Type the open password there and the document renders. Without it, nothing can — an encrypted file has to be decrypted before anything reads it.
Q: Do I need an account? A: No. No sign-up, no sign-in, no paid tier.
Q: Can I edit or annotate? A: No. It renders. Annotation belongs to the Doconut SDK, which is a different product.
Key Takeaways
- 70+ extensions across seventeen viewers, free, zero install, no account.
- The size limit is published per format; over it, the upload box says so.
- Send the file, not a link: each upload is its own session and nothing is stored afterwards.
- Works on any current browser, on any operating system.
- No editing, no annotation, no OCR, no batch.