360° Image Viewer — View Equirectangular Panoramas Online

Drop any equirectangular panoramic image (from Ricoh Theta, Insta360, GoPro Max, or any 360° camera) to view it interactively — drag to look in any direction, scroll to zoom, pinch on mobile. Nothing is uploaded.

By Muhammad Abdullah Rauf · Founder, EverydayTools.proUpdated 2026-05-20

What is a 360° image viewer?

A 360° image viewer displays equirectangular panoramic photos (2:1 aspect ratio) on the inside of a virtual sphere so you can drag to look in any direction—left, right, up, and down—without uploading files to a server.

A 360° image is an interactive photo that captures the full scene around the camera. Most 360° photos are stored as an equirectangular panorama: a flat rectangle where width is about twice the height (2:1). A 360 image viewer maps that rectangle onto the inside of a virtual sphere so the scene looks natural when you drag to look around.

This tool is built for photographers, real-estate agents, travellers, VR creators, and developers who need to inspect a 360 photo quickly—verify projection, check seams, and preview how end-users will experience the panorama—without installing desktop software or uploading sensitive files to the cloud.

View equirectangular 360° panoramas in your browser with drag, zoom, and fullscreen—JPEG, PNG, and WebP supported. Files stay on your device; nothing is uploaded.

Quick answers

Concise answers for common searches — definitions, steps, and comparisons.

What aspect ratio should a 360° equirectangular photo use?

Most full spherical 360° photos use a 2:1 aspect ratio (width = 2 × height). Common exports include 4096×2048 for fast mobile preview, 6000×3000 for balanced detail, and 7680×3840 (8K) for professional real-estate tours. If width is not close to 2× height, the viewer may still load the file but the scene can look distorted.

Are my 360° photos uploaded to EverydayTools servers?

No. Your image is read from your device and rendered with WebGL in the browser. It is not sent to our servers for viewing. You can verify by inspecting network requests while using the tool.

How to use 360° Image Viewer — View Equirectangular Panoramas Online

  1. Upload your panorama

    Drop a JPEG, PNG, or WebP file (max 20 MB) or click to browse. Use the sample 360 image to test controls without your own file.

  2. Drag to look around

    Click and drag inside the viewer to rotate left, right, up, and down. On mobile, swipe to pan the view.

  3. Zoom and inspect details

    Scroll or pinch to zoom in on signage, stitching seams, or interior details before publishing or sending to clients.

  4. Validate 2:1 format

    If the scene looks stretched or pinched, confirm the image is equirectangular (width ≈ 2× height) from your 360° camera or stitching software.

  5. Present in fullscreen

    Open fullscreen for on-site checks or client walkthroughs. Load another file anytime without refreshing the page.

Who uses 360° Image Viewer — View Equirectangular Panoramas Online?

Common real-world scenarios where this tool saves time.

Real estate tours

Inspect rooms, windows, and staging before sending a spherical preview to buyers or listing platforms.

Travel and destination marketing

Review location shots and select the best panorama before posting or embedding in a tour.

VR and immersive previews

Validate horizon alignment and seam quality before playback in VR headsets or immersive web players.

Architecture and construction

Check site captures and progress documentation in true spatial context—not as a flat stretched rectangle.

Reference tables

360° image viewer vs standard photo viewer

Capability360° Image ViewerStandard photo viewer
Look around in all directionsYes — drag to pan inside the sphereNo — shows a flat rectangle only
Correct equirectangular projectionMaps image onto inner spherePoles look stretched; spatial context is lost
Real-estate spatial previewUnderstand room layout interactivelyHard to interpret space from a flat strip
Privacy-first workflowLocal processing; no uploadVaries by app or cloud service

When to use 360° Image Viewer — View Equirectangular Panoramas Online vs related tools

Related toolUse this tool whenUse related tool when
Image CompressorYou need to inspect and navigate a 360° equirectangular panorama interactively before sharing or publishing.The panorama is already validated and you only need to reduce file size for faster web delivery or email attachments.
3D Model ViewerYour asset is a 2:1 photographic panorama (JPEG/PNG/WebP), not a GLB, GLTF, or STL mesh.You need to inspect 3D geometry, materials, or mesh structure—not a spherical photo.

Workflow guides

Step-by-step chains that connect related tools for common tasks.

Preview a 360° tour photo before publishing

Validate projection and seams locally before uploading to a tour platform.

  1. Load the equirectangular export from your 360° camera or stitcher in this viewer.
  2. Drag and zoom to confirm horizon, seams, and room layout look correct.
  3. If the file is too large for email or CMS limits, compress with Image Compressor without changing the 2:1 aspect ratio.

Common mistakes to avoid

Opening a 360° photo in a normal image app

A standard photo viewer shows equirectangular images as a flat, stretched rectangle. Use a 360 viewer (like this tool) to map the image onto a sphere so you can drag to look around and judge the scene correctly.

Using a wide panorama instead of full 360×180

Spherical 360° exports should be close to a 2:1 aspect ratio (width ≈ 2 × height). Cylindrical or partial stitches may load but will not wrap naturally around the virtual sphere.

Uploading HEIC or RAW without converting first

This viewer accepts JPEG, PNG, and WebP only. Export or convert iPhone HEIC files to JPEG before loading—for example with an image converter tool.

Assuming poles should look normal in a flat thumbnail

Equirectangular images look stretched at the top and bottom in flat previews—that is expected. Validate immersion inside a 360 viewer, not from a rectangular thumbnail alone.

Sending an unvalidated 8K panorama to clients or a tour host

Preview at 4096×2048 or 6000×3000 first to confirm seams, horizon, and exposure. Compress or resize for delivery only after the spherical view looks correct.

Confusing this tool with a 3D mesh viewer

GLB, GLTF, and STL files are 3D models—not 360 photos. Use a 3D model viewer for meshes; use this tool for 2:1 photographic panoramas from 360° cameras.

Troubleshooting

Image looks distorted or pinched

Likely cause: The file may not be equirectangular (2:1) or may use cylindrical/flat projection.

Fix: Re-export from your camera or stitching app as equirectangular spherical 360° with width about twice the height. If the tool shows an aspect-ratio warning, treat that as a format issue—not a viewer bug.

Wrong aspect ratio warning appears

Likely cause: Width is not close to 2× height (e.g. a wide pano or cropped export).

Fix: Check export settings in Ricoh Theta, Insta360, GoPro, or your stitcher. Target 2:1 resolutions such as 4096×2048, 6000×3000, or 7680×3840.

Black screen or viewer fails to load

Likely cause: Corrupt file, WebGL disabled, GPU memory limits, or unsupported format.

Fix: Try a smaller JPEG export, another browser (Chrome or Firefox), enable hardware acceleration, and confirm the file is JPEG/PNG/WebP under 20 MB.

Panorama loads but interaction is slow or stutters

Likely cause: Very large textures (8K+) exceed comfortable GPU memory on some devices.

Fix: The viewer may use a reduced-resolution texture for smooth interaction. For sharing, export a 4K or 6K preview; keep the master file for archival.

Visible seam or stitch line in the scene

Likely cause: Insufficient overlap, exposure drift, or handheld movement during capture.

Fix: Re-shoot with more overlap, lock exposure, use a tripod, or re-stitch in the camera app’s dedicated 360 workflow. The viewer cannot remove capture seams.

File rejected or error says unsupported format

Likely cause: HEIC, GIF, PDF, or non-image files are not supported.

Fix: Convert to JPEG, PNG, or WebP. Ensure the file is under 20 MB and is a valid image—not a renamed document.

Scene looks correct here but wrong on a tour platform

Likely cause: Hosting platforms expect specific projection metadata or cube-map packaging.

Fix: Confirm the source file is standard equirectangular 2:1. If the host requires a different layout, re-export from your stitcher for that platform’s spec after validating here.

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Frequently Asked Questions

What is an equirectangular 360° image?

An equirectangular image stores a full 360° horizontal and 180° vertical view in a single 2:1 rectangle. Each pixel maps to a viewing direction; wrapping that image on a sphere lets you look around interactively.

Which file formats are supported?

JPEG, PNG, and WebP up to 20 MB. For HEIC from iPhones, convert to JPEG first using an image converter tool.

Are my 360° photos uploaded to a server?

No. Panorama images are displayed locally in your browser with WebGL. They are not uploaded to EverydayTools servers for viewing.

What cameras work with this viewer?

Any device that exports equirectangular 360° photos works—Ricoh Theta, Insta360, GoPro MAX, DJI spherical workflows, and Photo Sphere-style smartphone apps. The file must be 2:1 for best results.

Why does my image look stretched at the top and bottom?

In a flat photo viewer, equirectangular poles look stretched—that is normal for the projection. Inside a 360 viewer the same file should look correct when you drag to look around.

Is this 360° image viewer free?

Yes. Free with no signup, no watermarks, and no usage limits. Processing runs in your browser.

Privacy, accuracy, and trust

Privacy

Panorama images are read from your device and rendered locally. They are not uploaded to our servers for this tool.

Accuracy

Rendering depends on your GPU, browser WebGL support, and valid image data. Very large panoramas may use reduced texture resolution for smooth interaction.

Preview and inspection tool—not a replacement for professional virtual-tour hosting, stitching software, or desktop VR authoring suites.

Part of 3D Tools

More free tools for the same workflow.

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Reviewed by EverydayTools Editorial Team on 2026-05-20.