Debate online. Right now.
Three ways to debate online. Pair with a real human in seconds. Spar against a format-accurate AI 24/7. Or post and join scheduled live tournament rounds. Voice or typed. Ten formats. Free while in beta.
Debate online with a human
Pick a prompt, hit Find, get paired with another debater on video. No format gate, no AI fallback, no time limit. The Omegle of debate.
Find a human roundDebate online against AI
Typed or voice round against a format-accurate AI opponent. Takes POIs, interrupts, writes the judge ballot at the end. Six AI brains to spar against.
Spar against AIDebate online in tournament rounds
Post a motion, accept a challenge, run a live round on video against another human. AI judge writes the ballot when the round ends.
Open the live roomsWhat you can debate online here
Ten competitive debate formats, plus a casual mode for first-timers. The AI knows the speech order, the timing, the speaker positions, the citation rules, and the judging criteria of each. Online debate practice that matches how your tournament actually runs.
- Asian Parliamentary · 3-on-3, definitions matter, WSDC pipeline
- WSDC / World Schools · 3-on-3, 8-minute speeches, POIs
- British Parliamentary (BP) · 4 teams, opening + closing, extensions
- APDA · US college parli, impromptu, no fake citations
- Public Forum (PF) · Monthly topics, lay-flow audience split
- Lincoln-Douglas (LD) · Value/criterion, trad or circuit
- Policy · Tagged cards, K-affs, T-shells, Arctic / Labor topics
- Congressional Debate · Seven speech positions, PO logic
- Model UN (MUN) · GA / Crisis / Specialized / JCC
- Quick Clash · 3-minute casual, no jargon, good for new debaters
How to debate online here
Pick a path
Human pairing if you want a real opponent in seconds. AI if you want a round right now without waiting. Live tournament rooms if you want a scheduled match with a judge ballot.
Pick a motion
Use a real tournament motion from your format, hit shuffle for a random one, or type your own. Both sides see the same prompt when the round starts.
Argue
Voice or typed. Take POIs, give POIs, push back on the warrant. Round ends, the AI judge writes the RFD with speaker points and one drill for next round.
Why this is a real online debate platform
Most "online debate" tools are forum threads, chat with a general AI, or asynchronous comment battles. This one is built for the actual sport. A real-time voice round on a clock, with format-native structure, against an opponent who pushes back, ending in a judge ballot scored on the criteria your format actually uses.
Built by a national APDA champion at UChicago. The voice-guidelines bank that drives every AI opponent knows the Sofia 2026 WUDC manual changes, India's 2025 WSDC win, the NDT 2026 Arctic-topic meta, the LD trad-vs-circuit split, the PF 1st-vs-2nd speaker asymmetry, and the 4-point judge spectrum (lay / flay / flow / tech). The AI debater on motion X today is meaningfully different from the AI on motion X last month because a nightly distillation pass pulls top-rated rounds back into the prompt.
Online debate FAQ
Where can I debate online for free?
Right here. /debate-chat pairs you with a real human. /debate-ai and /voice-debate let you spar against AI. /live hosts scheduled human-vs-human tournament rounds. Free while in beta; future pricing is reference-only.
How do I debate online with strangers?
Open /debate-chat, pick a prompt, hit Find. You're paired with another signed-in debater on the queue. Pairing usually lands in under a minute when anyone else is online. No format gate, no AI fallback. It's the closest thing to Omegle for debate.
How do I practice debate online if I don't have a partner?
Use /voice-debate. The AI takes the opposing side at varsity level, gives POIs, interrupts when relevant, and writes the judge ballot when you finish. You get a full round in under 10 minutes for casual formats, ~45 minutes for APDA, ~60 minutes for BP.
Which online debate platform is best for [my format]?
This one covers Asian Parliamentary, WSDC, BP, APDA, PF, LD, Policy, Congress, MUN, and a casual Quick Clash mode. Format selection is in /debate-ai. Each format has its own speech timing, citation rules, judging criteria, and speaker scale baked into the AI's prompt.
Can I debate online without signing up?
Yes for the AI rounds. Anonymous visitors get 5 rounds on /debate-ai before the soft cap. Signing in with Google bumps that to 10 total and unlocks the human pairing on /debate-chat and /spar (sign-in there is anti-bot, not gating).
Is this an online debate tournament site?
Not yet. /live hosts individual scheduled rounds with AI judging. A flagship online tournament with AI prelims + human elims is on the year-out roadmap (see the goals section on the landing page).
Can I debate online in languages other than English?
Yes. The picker on the landing page sets the AI's output language across 14 options including Hindi, Spanish, French, Mandarin, Arabic, Portuguese, Bahasa Indonesia, and more. The AI replies in your language; the TTS synthesizes voice in the matching language too.
How is this different from a generic AI chat app?
Three things. Real-time voice round on a clock instead of asynchronous chat. Format-accurate structure (Policy gets tagged cards, LD gets value/criterion, BP gets extensions). And a judge ballot at the end with speaker points and a concrete next-round drill, not a "great points on both sides" summary.