Panoramas load and render in your browser with WebGL. Your image files are never uploaded to EverydayTools servers.
Upload a 360° photo and drag to look around—instant preview in your browser, nothing uploaded.
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—without uploading files to a server.
A 360° photo captures the full scene around the camera. Most exports use equirectangular projection: a flat rectangle where width is about twice the height (2:1). A viewer maps that image onto the inside of a virtual sphere so the scene feels natural when you drag to look around.
Photographers, real-estate agents, travellers, and VR creators use browser viewers to inspect panoramas quickly—check projection, seams, and horizon—before publishing to a tour platform.
Equirectangular 2:1 photos belong in a sphere viewer, not a flat gallery app—validate immersion here before you publish.
Concise answers for common searches — definitions, steps, and comparisons.
Full spherical panoramas use 2:1 (width = 2 × height). Common exports: 4096×2048 for mobile preview, 6000×3000 for balanced detail, 7680×3840 for professional tours. Other ratios may look stretched in the sphere.
Upload an equirectangular JPEG, PNG, or WebP, then drag inside the viewer to look around. No app install or account required—the file stays on your device.
No. A 360° photo is a flat 2:1 image mapped onto a sphere. GLB, GLTF, and STL files are 3D meshes with geometry—open those in a 3D model viewer instead.
Equirectangular projection compresses the top and bottom of the sphere into the image edges—that stretch is normal in flat previews but looks correct inside a 360 viewer.
Drop a JPEG, PNG, or WebP file onto the upload area, click Upload photo, or tap Try demo to explore controls without your own file.
Drag inside the viewer to pan left, right, up, and down. Scroll or pinch to zoom. Use the on-screen controls for fullscreen, reset view, and auto-rotate.
Click New photo to replace the file. If the panorama is too large to email or upload elsewhere, compress with Image Compressor while keeping the 2:1 aspect ratio.
Equirectangular panoramas should be twice as wide as tall. If you see an aspect warning, re-export from your 360° camera or stitching app before viewing again.
Common real-world scenarios where this tool saves time.
Real-estate agents
Inspect rooms and staging in spatial context before publishing to tour platforms.
Photographers
Catch stitch lines, tripod nadir holes, and exposure drift before delivery.
Travel creators
Compare location shots interactively instead of judging from flat thumbnails.
VR developers
Confirm projection before embedding in WebXR or immersive web players.
Construction teams
Navigate progress photos in true direction—not as a stretched strip.
Privacy-conscious users
Preview sensitive interior photos locally—nothing sent to a server for viewing.
Step-by-step chains that connect related tools for common tasks.
Validate a listing panorama locally before Matterport, Zillow, or custom embed.
iPhone spherical photos often export as HEIC first.
When a client sends a GLB instead of a panorama.
Input
7680×3840 JPEG from Ricoh Theta or Insta360Output
Interactive room walkthrough—drag to check windows, corners, and stagingValidate layout and exposure before uploading to Zillow, Matterport, or a custom tour host.
Input
4096×2048 JPEG from a phone Photo SphereOutput
Drag to scan skyline, ground, and horizon alignmentQuick QA before posting to social or a travel blog embed.
Input
6000×2000 wide pano (3:1)Output
Viewer loads with aspect warning—scene may look pinchedRe-export as true 2:1 equirectangular from your camera or stitcher.
Input
Click Try demo in the toolOutput
1024×512 sample with drag, zoom, and fullscreen controlsLearn the controls before loading a client file.
EverydayTools loads your image into a WebGL canvas and maps it onto the inside of a sphere using equirectangular texture coordinates—the same projection used by Google Street View, Matterport previews, and VR photo players. Orbit controls let you rotate the camera inside the sphere; zoom adjusts field of view. For performance, textures above 8192 px on the longest side may be downscaled in the GPU while you interact. Aspect ratio is checked on load: width ÷ height near 2.0 indicates a full spherical panorama; wider or taller ratios trigger a warning because cylindrical or partial stitches will not wrap correctly.
Formula
equirectangular aspect ≈ width / height ≈ 2.0
horizontal coverage = 360° · vertical coverage = 180°| Capability | 360° Image Viewer | Standard photo app |
|---|---|---|
| Look around all directions | Yes — drag inside sphere | No — flat rectangle only |
| Correct equirectangular wrap | Maps onto inner sphere | Poles look stretched |
| Real-estate spatial sense | Understand room layout | Hard to judge space |
| Local privacy | WebGL in browser, no upload | Varies by cloud gallery |
| Resolution | Typical use | Notes |
|---|---|---|
| 4096×2048 | Mobile preview, social | Fast to load and share |
| 6000×3000 | Balanced quality | Good for most tour hosts |
| 7680×3840 | Professional RE tours | May downscale on low-end GPUs |
| 1024×512 | Demo / test | Built-in Try demo sample |
| Asset | Format | Open with |
|---|---|---|
| 360° panorama | 2:1 JPEG / PNG / WebP | 360° Image Viewer |
| GLB / GLTF mesh | Binary or JSON 3D | GLTF / GLB Viewer |
| STL print model | Triangle mesh | STL File Viewer |
| Flat photo | Any aspect JPEG | Image viewer or editor |
Use this tool for equirectangular 360° photos. Switch when you need compression, format conversion, or true 3D mesh inspection.
| Related tool | Use this tool when | Use related tool when |
|---|---|---|
| Image Compressor | You need to drag around a 2:1 panorama and verify projection before sharing. | The panorama looks correct and you need a smaller file for email, CMS, or tour upload limits. |
| GLTF / GLB Viewer | Your file is a photographic 360° panorama (JPEG/PNG/WebP), not a 3D mesh. | You need to inspect GLB or GLTF geometry, materials, and animations. |
| 3D Model Viewer | You have an equirectangular photo from a 360° camera. | You have OBJ, STL, or other mesh formats to preview in 3D. |
| Image Converter | Your panorama is already JPEG, PNG, or WebP. | You need to convert HEIC, BMP, or other formats before loading here. |
| Image Resizer | You are only previewing the full-resolution export. | You need a smaller 2:1 preview (e.g. 4096×2048) after validating the master file. |
| All 3D Tools | Your task is specifically equirectangular panorama viewing. | You want STL, GLB, 360°, or screenshot tools in one hub. |
Width ≈ 2× height ensures the scene wraps naturally on the virtual sphere.
Catch seams, horizon tilt, and exposure issues locally—hosts rarely fix capture problems.
8K masters are for archival; smaller 2:1 exports load faster for clients and mobile.
Reduces stitch lines and brightness drift that no viewer can repair.
Flat previews always stretch poles—immersion is the real test.
Use a 360 viewer to map the image on a sphere—flat apps show a distorted strip.
Spherical exports need ~2:1 aspect. Cylindrical stitches will not wrap correctly.
Convert to JPEG, PNG, or WebP first—this viewer does not accept HEIC.
Pole stretch is expected in equirectangular flats—inspect inside the viewer.
360° photos are images; meshes need a 3D model viewer.
Likely cause: File is not 2:1 equirectangular or uses cylindrical projection.
Fix: Re-export from your camera or stitcher as spherical 2:1 (e.g. 6000×3000).
Likely cause: Width is not close to 2× height.
Fix: Check export settings in Ricoh Theta, Insta360, GoPro, or your stitcher.
Likely cause: Corrupt file, WebGL disabled, or unsupported format.
Fix: Try Chrome or Firefox, enable hardware acceleration, confirm JPEG/PNG/WebP under 20 MB.
Likely cause: GPU memory limits on the device.
Fix: Viewer may downscale the texture; export a 4K preview for smoother review.
Likely cause: Capture overlap or exposure issues—not a viewer bug.
Fix: Re-shoot with tripod and locked exposure, or re-stitch in camera software.
Likely cause: HEIC, GIF, PDF, or non-image file.
Fix: Convert to JPEG, PNG, or WebP under 20 MB.
This tool only views finished equirectangular files—use your camera app or PTGui-style stitcher to create them.
Use Matterport, Kuula, or your CMS embed—this is a local preview and QA tool, not a tour host.
Those are 3D meshes—open them in GLTF/GLB Viewer or STL File Viewer, not here.
Use Photoshop or dedicated panorama editors—this viewer is read-only inspection.
Browser WebGL preview differs from headset apps—validate immersion here, then test on target hardware.
Continue the workflow with the right follow-up tool.
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JPEG, PNG, and WebP up to 20 MB. Convert HEIC from iPhones to JPEG with Image Converter first.
Any device that exports equirectangular 2:1 photos—Ricoh Theta, Insta360, GoPro MAX, DJI spherical modes, and Photo Sphere apps.
Equirectangular poles compress into the top and bottom edges—that is normal. The same file should look correct when you drag inside the 360 viewer.
This tool expects standard 2:1 equirectangular JPEG/PNG/WebP. Convert other projections in your stitcher before loading.
Yes—tap the auto-rotate control in the viewer toolbar. Drag and pinch gestures work on touch screens.
Yes—free with no signup, watermarks, or usage limits. Rendering runs in your browser.
Panorama images are read from your device and rendered locally—they are not uploaded for viewing.
WebGL rendering depends on your GPU and browser. Large panoramas may use reduced texture resolution for smooth interaction.
Upload or demo load triggers local WebGL sphere rendering. No network request sends your image to EverydayTools servers.
Click Try demo—confirm drag rotates the view and controls appear at the bottom. Upload a 2:1 JPEG and check the dimension line shows width ≈ 2× height.
Limitations: Preview tool only—does not stitch, host tours, or edit pixels. Cannot repair capture seams or wrong projection.
Not a replacement for professional virtual-tour hosting or desktop VR authoring suites.
Part of 3D Tools
More free tools for the same workflow.
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Free image converter — convert JPG, PNG, WebP, HEIC, BMP, and TIFF to any format in your browser. Batch conversion supported. Files never sent to a server. No signup required.
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Reviewed by EverydayTools Editorial Team on 2026-06-13.
Drop your 360° photo here
JPEG, PNG, or WebP · max 20 MB