Off-Nadir Delta
EO Browser Alternative

A Free EO Browser Alternative

EO Browser has been retired. Off-Nadir Delta is a no-code, browser-based way to view and compare Sentinel and VIIRS imagery — free to start, and it goes further, letting you monitor any area over time.

Quick answer — what Off-Nadir Delta is

EO Browser, Sentinel Hub’s free imagery browser, was retired on 20 March 2026; ESA’s Copernicus Browser is the free successor for plain Sentinel browsing. Off-Nadir Delta is a no-code, browser-based alternative for the same core workflow — finding, visualizing, and comparing Sentinel-1, Sentinel-2, and VIIRS imagery — and it adds automated area monitoring and an event-intelligence layer that EO Browser did not have. Sentinel-2 viewing is on the free tier; Sentinel-1 and VIIRS are on paid plans.

EO Browser vs Copernicus Browser vs Off-Nadir Delta

Facts last reviewed 2026-08-23.

CapabilityEO BrowserCopernicus BrowserOff-Nadir Delta
StatusRetired 20 Mar 2026AvailableAvailable
Cost to useWas freeFree (account to download)Free tier; paid plans
Browse and compare Sentinel scenes in the browserYesYesYes
Automated area monitoring over timeNoNoYes
Geolocated world-event layerNoNoYes
Best forNo longer availablePlain Sentinel browsing and downloadBrowsing plus monitoring and event context

Planet deprecated the Sentinel Hub user interfaces, not the APIs; its announcement points free public-data users to ESA’s Copernicus Browser. Off-Nadir Delta serves Sentinel-2 on the free tier, with Sentinel-1 and VIIRS on paid plans. Off-Nadir Delta is an independent project and is not affiliated with Planet, Sinergise, or ESA.

What to use instead of EO Browser

What EO Browser was great for

Quickly browsing and comparing full-resolution Sentinel and Landsat scenes in the browser, with ready-made visualizations and custom scripts for power users.

What Off-Nadir Delta adds

The same no-code browsing and visualization, plus automated area monitoring over time, change detection, active fires, and an event-intelligence layer (the Watchfloor) — with a free tier to start.

Sentinel & VIIRS

View Sentinel-1 SAR, Sentinel-2 optical, and VIIRS nighttime lights. Sentinel-2 is included on the free tier; Sentinel-1 and VIIRS are on paid plans.

One-Click Visualization

True Color, False Color, and indices like NDVI in a click — no band math, no scripting.

Monitor Over Time

Beyond a single scene: track an area as a time series with automatic anomaly detection.

Fast Search

Filter years of imagery by date and area and preview results before adding them to the map.

No Install

Runs entirely in the browser — nothing to download, just like EO Browser.

Event Intelligence

The Watchfloor overlays geolocated world events on imagery — a layer EO Browser never had.

How It Works

1

Open the map — no install

Off-Nadir Delta runs entirely in the browser, just like EO Browser. There is nothing to download and no GIS software to set up.

2

Search imagery by date and area

Pan to any location, filter by date, and preview Sentinel-1 SAR, Sentinel-2 optical, and VIIRS scenes before adding them to the map.

3

Visualize with one click

Switch between True Color, False Color, and spectral indices like NDVI instantly — no manual band math or scripts required.

4

Go beyond viewing — monitor over time

Draw an area and track how it changes as a time series with anomaly detection, and overlay real-world event signals on the Watchfloor.

Frequently Asked Questions

What happened to EO Browser?
EO Browser, the free satellite imagery browsing tool from Sentinel Hub, was retired on 20 March 2026 as Sentinel Hub and Planet consolidated onto a unified platform. Planet’s own announcement points free public-data users to ESA’s Copernicus Browser and Planet-data users to the Planet Insights Platform. If what you want back is plain Sentinel browsing, Copernicus Browser is the direct successor; Off-Nadir Delta is worth a look when you also want automated area monitoring and an event-intelligence layer alongside the imagery.
Is Off-Nadir Delta a good EO Browser alternative?
For the most common EO Browser workflow — opening a browser, finding recent satellite imagery over an area, switching visualizations, and comparing dates — yes. Off-Nadir Delta is browser-based and no-code, supports Sentinel-1 SAR, Sentinel-2 optical, and VIIRS, and offers one-click True Color, False Color, and index visualizations. It also adds capabilities EO Browser did not have: automated area monitoring over time and an event-intelligence layer.
Is it free?
You can start for free. Off-Nadir Delta uses token-based pricing for imagery rendering and processing, with a free tier that includes Sentinel-2 optical viewing and area monitoring. Sentinel-1 SAR, VIIRS nighttime lights, the NASA FIRMS active-fire layer, and change detection are on paid plans. See the pricing page for current details.
Which satellites and data can I view?
Sentinel-1 C-band SAR (all-weather, day or night), Sentinel-2 optical (10m multispectral with True/False color and indices), VIIRS nighttime lights, and NASA FIRMS active fires. You can also upload your own GeoTIFF, COG, or GeoJSON files and overlay them. Sentinel-2 and file upload are included on the free tier; Sentinel-1, VIIRS, and active fires are on paid plans — the pricing page has the current split.
Do I need an account or any installation?
No installation — it runs in the browser. You can browse the public Watchfloor without an account; opening imagery on the map, saving your work, and area monitoring need an account, and a free one is enough to start.
I used EO Browser custom scripts (Evalscript). Can I do that here?
Off-Nadir Delta focuses on a fast, no-code experience with ready-made visualizations and indices rather than custom scripting. If your workflow depended heavily on custom Evalscripts, you may want a scripting-oriented platform; for everyday viewing, comparison, and monitoring, Off-Nadir Delta covers the core workflow without any code.

Switch From EO Browser in Minutes

Start free in your browser: view and compare satellite imagery, then monitor any area over time. No install, no scripting.

From headline to satellite evidence

One connected intelligence workflow across four surfaces — free to start, no GIS software or remote-sensing background required.