What Is Internet Radio? Everything You Need to Know
Internet radio is one of the most accessible and rewarding forms of media available today, yet many people are not entirely sure what it is, how it differs from traditional radio, or how to get started. At its simplest, internet radio is audio content — music, talk, news, sports — delivered over the internet as a continuous live stream, just like traditional radio but without the need for an FM or AM receiver. If you have an internet connection, you have access to thousands of radio stations from every country on Earth.
The Basics: How Internet Radio Works
Internet radio works by converting audio into a digital format and transmitting it over the internet to your device. Here is the process in simplified terms:
A radio station captures or plays audio content — whether that is a DJ mixing songs, a news anchor reading bulletins, or a live concert being broadcast. This audio is then encoded into a compressed digital format, typically MP3 or AAC, and sent to a streaming server. When you click "play" on a station, your device connects to that server and begins receiving a continuous flow of audio data, which it decodes and plays through your speakers or headphones in real time.
The term "streaming" refers to this continuous delivery — the audio arrives as a steady stream of data rather than as a single file download. You do not need to wait for a file to download before listening; the audio begins playing almost immediately. For a more technical look at the underlying systems, see our article on how radio streaming technology works.
Internet Radio vs. Traditional Radio
Traditional AM and FM radio transmits audio through electromagnetic waves from a broadcast tower. You need a radio receiver (built into car stereos, clock radios, portable radios, etc.) and you must be within range of the transmitter to hear the signal. This limits each station's audience to a specific geographic area.
Internet radio removes this geographic limitation entirely. A station based in Buenos Aires can be heard in Helsinki, and a community radio station in rural India can reach listeners in London. The result is an explosion of choice — instead of the handful of stations available on your local FM dial, you have access to thousands worldwide.
For a detailed comparison of the two formats including their respective pros and cons, see our article on internet radio vs. FM.
Types of Internet Radio
Simulcast stations: These are traditional broadcast stations that also stream their content online. Most major AM and FM stations now simulcast, meaning you can listen to the same programming online that is being broadcast over the air. When you listen to BBC Radio 1 through the BBC Sounds app, for example, you are hearing the same live broadcast that FM listeners in the UK receive — just delivered over the internet.
Internet-only stations: These stations exist exclusively online, with no corresponding FM or AM broadcast. Internet-only stations can serve extremely niche audiences because they do not need to justify the expense of a broadcast license and transmitter. This has led to an explosion of specialized stations — there are internet-only stations dedicated to every subgenre of music, every era, and every conceivable interest.
Personal and community streams: The low barrier to entry for internet radio means that individuals and small communities can create their own stations with minimal equipment. A hobbyist DJ with a computer and an internet connection can broadcast to the world. This democratization of broadcasting has created a vast and diverse landscape of micro-stations that would be impossible under the traditional broadcast model.
What You Need to Listen
The requirements for listening to internet radio are minimal:
An internet connection — WiFi, mobile data (3G, 4G, or 5G), or a wired connection all work. The bandwidth requirements are modest; most radio streams work comfortably on any modern internet connection.
A device — a smartphone, tablet, computer, smart speaker, or smart TV. Virtually any internet-connected device with audio output can play internet radio.
A way to find and play stations — this can be a station's own website, a dedicated radio app, a smart speaker voice command, or an aggregation platform like RadioGlob that brings thousands of stations together in one place.
No special hardware is required. No subscription is necessary for the vast majority of stations — internet radio is overwhelmingly free to listeners. For a step-by-step guide to getting started, see our article on how to listen to radio online.
Audio Quality
Internet radio streams come in various quality levels, measured in bitrate (kilobits per second, or kbps). Common bitrates include:
64 kbps: Low quality, suitable for talk radio where music fidelity is less important. Uses the least data — around 28 MB per hour.
128 kbps: Standard quality, comparable to FM radio. Uses approximately 55 MB per hour. This is the most common bitrate for internet radio stations.
192-256 kbps: High quality, noticeably better than FM. Uses 85-115 MB per hour.
320 kbps: Near-CD quality, suitable for discerning listeners with good audio equipment. Uses approximately 140 MB per hour.
Some stations offer multiple quality options, allowing listeners to choose based on their internet connection and data budget. Higher quality means more data consumption, which is a consideration for listeners on mobile data plans.
Internet Radio vs. Music Streaming Services
It is worth distinguishing internet radio from on-demand music streaming services. Services like Spotify and Apple Music let you choose exactly which song or album to play, create custom playlists, and control playback completely. Internet radio, like traditional radio, is a linear, live medium — you listen to what the station is broadcasting in real time, curated by human DJs or automated systems.
This distinction is significant. On-demand services are excellent for listening to specific music you already know you want to hear. Radio excels at discovery, surprise, and the experience of hearing something unexpected. The human curation of a great radio station — where a knowledgeable DJ builds sets, provides context, and introduces you to music you never knew existed — remains an experience that algorithms struggle to replicate.
The Scale of Internet Radio
The internet radio landscape is enormous. Tens of thousands of stations stream online, covering every country, language, and musical genre on the planet. Major public broadcasters like the BBC, Deutsche Welle, Radio France, and NHK stream alongside tiny community stations, college radio outlets, and individual hobbyist broadcasters.
This scale can be overwhelming, which is why aggregation platforms and discovery tools are so valuable. RadioGlob addresses this by presenting the world's radio stations on a 3D globe, making the vast landscape navigable and the process of discovery joyful rather than daunting.
Common Uses for Internet Radio
Music discovery: Finding new artists, genres, and musical traditions from around the world. See our genre guides for jazz, rock, electronic, classical, and more.
Staying informed: Listening to news stations from different countries to get multiple perspectives on world events.
Language learning: Immersing yourself in a language by listening to stations that broadcast in it. See our guide on using radio for language learning.
Background listening: Having pleasant, curated music or ambient soundscapes playing while you work, study, or relax.
Cultural connection: Staying connected to your home country's radio while living abroad, or exploring the culture of a country you plan to visit.
Getting Started
The best way to experience internet radio is to start listening. Open RadioGlob, spin the globe, zoom into a country or city that interests you, and press play. Within seconds, you will be hearing live radio from the other side of the world — a remarkable thing that would have been unimaginable just a generation ago. The world's airwaves are open to you. All you need to do is listen.