iRacing overlay software 2026
Best iRacing Overlay Software for League Broadcasting in 2026
The best overlay is not the one with the most widgets. It is the one that tells viewers who matters, what changed and why the next camera shot is worth watching.
Quick answer
For a new league broadcast, start with EDR Broadcast: its WYSIWYG Theme Editor, 46 coordinated OBS graphics, 23 ready-made themes, Auto-Director, incidents and replay tools now form the strongest all-in-one production package. Compare ATVO when an established NDI workflow is essential and SDK Gaming when driver HUD and detailed timing are the main job.
Reviewed and updated 22 August 2026 after the release of the EDR Broadcast WYSIWYG Theme Editor
We build EDR Broadcast. Product facts were checked against official websites, and the full market comparison is kept on a separate page. This guide focuses on what league viewers actually need from overlays.
Choose by the graphic you need most
A completely custom TV package
EDR Broadcast is now the natural first test for a new league package: its WYSIWYG Theme Editor builds the custom look inside the same browser-source system that runs timing, cameras, incidents and replays. Its standard output workflow uses individual browser sources, while NDI output is available on request with Enterprise. Choose ATVO when an existing NDI theme workflow is the non-negotiable requirement.
A clean OBS package that a small crew can run
EDR Broadcast provides individual browser-source overlays and connects them to camera, incident and replay workflow.
Detailed timing that I can style component by component
SDK Gaming should be on the shortlist. Its Live Streamer web overlay exposes detailed layout and styling controls.
Free self-hosted graphics that never leave my PC
Use a local open-source project if your crew is comfortable installing Python, maintaining updates and supporting the stack.
Driving overlays rather than a league broadcast package
RaceLab or JRT may be a better fit. Their centre is driver information, timing and strategy, not complete race-night direction.
The seven overlays that carry a league broadcast
1. Leaderboard
Overall and class position, gaps, pit state and a clear focus indicator. It must remain readable when the field has 40 cars.
2. Focused-driver card
Name, number, team, class and the one or two statistics relevant to the current story. Do not turn it into a database dump.
3. Battle or relative box
A compact view of the cars around the target. This tells viewers why the camera is staying with P14 instead of the leader.
4. Flags and race state
Green, caution, restart, white and chequered information should be obvious without covering the action.
5. Grid and results
Starting order, class separation and final positions give the show a proper beginning and ending.
6. Track map
Most useful in multiclass racing, pit cycles and long endurance events. Class colour and focused-car emphasis matter.
7. Sponsor and race-control graphics
Sponsor straps, penalty notices and steward messages need dedicated safe areas rather than being squeezed into the timing tower.
A complete package uses several focused graphics. It does not leave every widget on screen for the entire race.
The main overlay software choices
| Tool | Overlay strength | Production route | Best for |
|---|---|---|---|
| EDR Broadcast | WYSIWYG Theme Editor, 46 coordinated broadcast graphics and 23 themes | Individual browser sources plus operator control | Leagues and small crews running the full show |
| ATVO | Visual Theme Editor and established custom packages | NDI or window capture | Designer-led custom productions |
| SDK Gaming | Detailed timing and configurable web components | Web overlay in OBS | Timing-heavy streams and connected HUD use |
| iSimBroadcaster | League, championship and season graphics | Local browser sources | Season data and championship storytelling |
| Self-hosted open source | Useful local graphics with code-level control | Local web servers and browser sources | Technical crews prioritising ownership and cost |
| RaceLab and JRT | Driver timing, strategy and HUD information | App, browser or streaming layouts | Drivers, analysts and simpler streams |
For verified 2026 product details and links, use the full iRacing broadcast software comparison.
Browser source, NDI or window capture?
Browser sources are easy to duplicate, layer and toggle inside OBS. Each graphic can have its own URL, size and visibility. They suit web-based overlays and local app servers.
NDI sends a video or graphics feed across the machine or network. It can preserve alpha and suits multi-PC studios, but it adds an NDI layer to the production. ATVO recommends NDI. EDR uses individual browser sources as its standard workflow, while NDI output is available on request with Enterprise.
Window capture is simple when a tool renders its own output window, but the operator must protect the capture from resizing, focus and desktop changes. Test the exact route at your target resolution and frame rate.
What makes an overlay readable
Multiclass overlays need different logic
Overall position is not enough in an endurance broadcast. The tower must make class position obvious, the map needs class colours and the focused-driver card must explain whether the car is racing for an overall or class result.
Pit cycles also distort simple gaps. A useful broadcast separates track position from strategic position and gives commentators enough context to avoid calling a temporary lead as a genuine pass. We cover that in the dedicated multiclass broadcasting guide.
A track map earns its space when it explains traffic, pit cycles and where the next battle will meet.
A race-night overlay test
Record a 20-minute practice stream with the exact output resolution your viewers will receive.
Watch it once on a television and once on a phone without pausing.
Write down every moment you could not identify the car, class, gap or live versus replay state.
Remove one persistent graphic and see whether the picture becomes easier to understand.
Ask somebody unfamiliar with the league to name the leader, current battle and flag state within ten seconds.
Only after that test, add sponsor or secondary data elements.
Frequently asked questions
What is the best free iRacing overlay software?
The best free option depends on your tolerance for setup. EDR Broadcast includes permanent free core graphics. Open-source self-hosted projects can offer more control but require installation and maintenance.
Does ATVO work as an OBS browser source?
ATVO’s official 2026 site says browser-source capture is not supported. It recommends NDI or window capture.
Can I use RaceLab for a league broadcast?
You can use racing overlays in a stream, but RaceLab’s product centre is driver-facing information across multiple sims. Compare it with dedicated broadcast software if you need race control, replay and league operations.
How many overlays should stay visible all race?
Usually fewer than you think. A readable leaderboard or ticker may stay persistent, while driver cards, battle boxes, flags and sponsor graphics should appear when they have a job.
Do browser-source overlays hurt performance?
They use resources, especially when several animated pages render at high frame rates. Test the complete scene and disable sources you do not need.
Can EDR overlays use my league branding?
Yes. EDR includes 23 ready-made themes and the new WYSIWYG Theme Editor for visually building a custom league look across 46 coordinated overlays.
Next steps
Learn the exact OBS browser-source setup, compare ATVO with EDR, or see why live iRacing data needs production logic before it becomes a useful graphic.
Build the essential scene first
Start with EDR’s free leaderboard, driver card, ticker, flags, grid and podium. Add Pro only when camera and replay workflow solve a real production problem.
Download Free Custom League Graphics
