2026年のベストSlack代替ツール
Slackの代替を探していますか？トップの選択肢を比較しましょう。
なぜSlackの代替を検討すべき？
- ⚠️Expensive for large teams ($8.75/user/month)
- ⚠️Free tier limits message history to 90 days
- ⚠️Can become noisy without channel discipline
- ⚠️No built-in video conferencing (uses Huddles)
Slackのトップ2代替ツール
#1
Microsoft Teams
Microsoft Teams is a collaboration platform integrated with Microsoft 365.
Free / included with M365
無料プランあり✅ 장점
- • Free with M365
- • Video meetings
- • Office integration
❌ Cons
- • Slower
- • Complex
#2
Discord
Discord is a free communication platform originally built for gamers, now widely used by communities, developer teams, and startups. It offers voice channels, text chat, forums, and streaming.
Free / $9.99/month (Nitro)
無料プランあり✅ 장점
- • Completely free for most features
- • Excellent voice channel quality and always-on rooms
- • Strong community-building features (roles, forums)
❌ Cons
- • Not designed for enterprise compliance
- • Lacks business integrations (Salesforce, Jira, etc.)
- • Can feel unprofessional for client communication
クイック比較
| Tool | Price | Free Tier | Best For |
|---|---|---|---|
| Slack | Free / $8.75/month per user | ✅ | Communication |
| Microsoft Teams | Free / included with M365 | ✅ | Communication |
| Discord | Free / $9.99/month (Nitro) | ✅ | Communication |