1.

Elite Dangerous Star Map

EDSM (Elite Dangerous Star Map) was at first a community effort to store and calculate systems coordinates around the Elite: Dangerous galaxy. It is now the main API used by dozens of software and websites to find systems, coordinates, information (governement, allegiance, faction...) and celestial bodies (types, materials...).
EDSM has become a must-have for all respectable explorers, and commanders in the galaxy, with it you can:

• Track your exploration data
• Track your flight log
• Track your fleet
• Track your ranks
• Write your logbook
• Write comments and bookmark explored systems
• Search commodities in stations
• Search ships in stations

2.

Cmdrs Toolbox

All your Elite Dangerous Tools and guides in one place

3.

Spansh.co.uk - Fleet Carrier Router

This page will allow you to plot between two different star systems for your fleet carrier. The result will show you every system you need to route to. It will also let you know when you should gather more fuel. Time estimates are based on 20 minutes per jump and yielding 150 tonnes of tritium per hour mining for a single player.

4.

Inara.cz - Elite Dangerous Companion

This website is not an official tool for the game Elite: Dangerous and is not affiliated with Frontier Developments.

5.

Canonn - System Signals

Search to review system signals recorded by Canonn field researchers.

6.

Canonn - Bioforge

Search to review Biology recorded by Canonn field researchers.

7.

Canonn ED3D-Map

Canonn Map with all relevant location information about Guardians, Thargoids, Stellar Phenomenas, Biology and Geology, Also some Tools can be found here.

8.

Canonn - Guardian Ancient Ruins

Search for Guardian Ancient Ruins.

9.

ExTool

ExTool is back with the collaboration of Canonn through their EDMC-Canonn plugin. The website is still in beta and several features have been suspended. The redesign of the interface will come later.

10.

Elite BGS

Monitoring BGS (Background Simulation) states and changes in the Elite: Dangerous universe.

11.

Galactic Exploration Catalog

Welcome to the Galactic Exploration Catalog (GEC) on EDAstro, and thank you for sharing your interesting, beautiful, rare, and exceptional discoveries for your fellow Commanders to enjoy! Please review the submission guidelines and rating suggestions before submitting or rating a Point of Interest (POI). Get in touch with the GEC team on our discord with any questions, concerns, or just to say hi. Otherwise, we'll see you in The Black, CMDR!

11.

Elite:Dangerous Astrometrics

Welcome to Elite:Dangerous Astrometrics on EDAstro, Maps, Charts, Graphs →

11.

Elite:Dangerous tools collection

General tools

Tools for mining

Rares List of stations that offer rare commodities for sale Distances Tool for calculating distances between multiple systems, each to each, with results in a matrix table Sphere Information about all populated systems in a sphere with specified radius around a specified system List Tool Find out distances from one system to a set of systems, you can enter your own or use one of the pre-defined lists. You can also plot a route to visit all systems in the list Road To Riches A list of systems with high-value planets for scanning (Earth-likes, Terraformable Water Worlds and High-Metal Content planets) Massacre A tool for finding good sources of PVE "Massacre pirates" missions. See this for explanation

Miner's Tool Suitable mining locations (for some minerals) and stations that currently offer high prices Hotspots List of known hotspots for different minerals around populated areas (Bubble, Pleiades, Colonia) Mining Missions List of stations likely to produce mining missions, by distance from reference system. These stations don't have 'Extraction' or 'Refinery' as one of the economies. Multiple minerals prices A tool to find stations close to your location with good prices for more than one mineral. See this for explanation List tool (again) Namely, some pre-defined lists useful for mining: Double Platinum Hotspots Double Painite Hotspots Triple LTD hotspots Bromellite overlaps Hotspots and RES combinations Platinum hotspots with high yield Platinum hotspots and RES combinations

Please note that Selenium tool, while still exists, is obsolete in Odyssey. Go here instead, then visit the List tool for locations of Brain Trees.
The RES search tool, while also still exists, is no longer maintained or supported. You can find the list of Compromized Nav Beacons on Inara website here.