Compare 27 free messaging tools, free tiers, and developer deals. We could not confirm today's terms for 11 of them: on 7 the page we cite did not answer, and on 4 our own read did not confirm them. Each row says why. Nothing on record contradicts our terms for Cloudflare Queues, QStash, Pusher and more.
What this name holds: Queues, pub/sub, webhooks and notification delivery between services, not between people.
5 other names here answer “how do people working together talk and track work”, and each holds a different list: Communication (17), Communication & Messaging (8), Productivity & Notes (16), Project Management (49), Team Collaboration (34).
We track 27 messaging services with a free tier we hold as current. This category has seen some movement — 11 pricing changes recorded across vendors.
| Vendor | Tier | Description | Read / catalogue date |
|---|---|---|---|
| CloudAMQP | Little Lemur | Superseded: As of 2026-09-09, cloudamqp.com/plans.html reads: Little Lemur - For Development Max 100 queues Max 10 000 queued messages Max idle queue time 28 days Shared RabbitMQ broker 1 M Message quota/month 20 Connection limit FREE. We are not publishing our stored CloudAMQP terms beside it — our own pricing change record, discovered 2026-09-09, names them as the previous ones. Read what we recorded ↓ | 2026-09-25 / 2026-07-24 |
| Cloudflare Queues | Free | Message queues on Workers — Cloudflare Queues charges for the total number of operations against each of your queues during a given month. An operation is counted for each 64 KB of data that is written, read, or deleted. Workers Free includes 10,000 operations/day. Workers Paid includes 1,000,000 operations/month + $0.40/million operations. Message retention is 24 hours (non-configurable) on the free tier and 4 days default, configurable up to 14 days on the paid tier. | 2026-09-21 |
| QStash | Free | Serverless message queue by Upstash — 1,000 messages/day, 10 active schedules, 7-day max delay, retries free | 2026-09-24 |
| Pusher | Free | Real-time messaging — 200K messages/day, 100 concurrent connections free | 2026-09-24 |
| Ably | Free | Real-time infrastructure — 6M messages/month, 200 concurrent connections, 200 channels, pub/sub + chat + spaces | 2026-09-24 |
| Novu | Free | Notification infrastructure — 10K workflow runs/month, 20 workflows, 2 environments, 3 team members. All channels: email, in-app, SMS, chat, push | 2026-09-24 |
| Svix | Free | Webhook service for sending (Dispatch), receiving (Ingest) and data streaming (Stream). The Free plan is $0 with no credit card: up to 50,000 messages a month, 50 messages a second, 7-day payload retention and the embeddable webhooks UI. Basic, from $20 a month, adds a 99.9% uptime SLA, 200 messages a second and 30-day retention, the Free plan's terms until September 2026, and bills messages beyond 50,000 a month.Our read on 2026-09-24 found the page different from the terms we hold, and we hold no confirmation of the terms we publish. | 2026-09-24 / 2026-07-30 |
| Crisp | Free | Customer messaging platform — 2 seats, 100 contacts, unlimited conversations. Website chat widget, shared inbox, desktop/mobile appsWhen we last read the page we cite for this offer, on 2026-09-09, we refused the change we considered recording because it named no figure that had moved, and refusing a change is not a confirmation of the terms above, so we cannot confirm these terms today. | 2026-07-29 · tried 2026-09-24, no read |
| OneSignal | Free | Push notification platform — Free $0/mo. Access to: All channels, Basic automation & analytics, OneSignal AI & MCP, Basic personalization. Mobile Push Notifications for organizations with up to 1,000 monthly active users. Web Push Notifications Max 10,000 subscribers per send. Email 10,000 sends / month. | 2026-09-25 / 2026-07-31 |
| Knock | Developer | Notification infrastructure — 10,000 notifications/month, 500 guide active users, unlimited workflows/broadcasts/channels/team members. All delivery channels included | 2026-09-25 |
| ElasticMQ | Open Source | Lightweight message queue server with SQS-compatible interface. In-memory or file-backed persistence. REST and SQS query APIs. Open source (Apache-2.0). Runs as single JAR or Docker container. Ideal for local dev and testing without AWS dependenciesThe page we cite for ElasticMQ names a plan but states no amount, so these limits come from our own record rather than from that page. | 2026-09-17 |
| Zoho Cliq | Free | Team chat software with 100 GB storage, unlimited users, 100 users per channel & SSO.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-07-30 |
| courier.com | Free | Single API for push, in-app, email, chat, SMS, and other messaging channels with template management and other features. The free plan includes 10,000 messages/mo.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-18 |
| EMQX Serverless | Free | Scalable and secure serverless MQTT broker you can get in seconds. 1M session minutes/month free forever (no credit card required). | 2026-09-28 |
| Engage | Free | All-in-one Customer Engagement and Automation Tool (email, push, SMS, product tours, banners and more) for SaaS. Free for up to 1,000 active users per month.We could not read the page we cite for this offer when we last looked, on 2026-09-10, so we cannot confirm these terms today. | 2026-08-08 · tried 2026-09-10, no read |
| engagespot.co | Free | Multi-channel notification infrastructure for developers with a prebuilt in-app inbox and no-code template editor. Free plan includes 10,000 messages/mo.engagespot.co's pricing page has not resolved for us since 2026-08-07. | 2026-08-07 · tried 2026-09-13, no read |
| HiveMQ | Free | Connect your MQTT devices to the Cloud Native IoT Messaging Broker. Free to connect up to 100 devices (no credit card required) forever.The page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-13, so we cannot confirm these terms today. | 2026-09-13 / 2026-08-30 |
| httpSMS | Free | Send and receive text messages using your Android phone as an SMS Gateway. Free to send and receive up to 200 messages per month.When we last read the page we cite for this offer, on 2026-09-14, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today. | 2026-09-14 / 2026-08-08 |
| Pingram.io | Free | Communication infrastructure in 5 minutes. Free tier includes: 100 SMS and calls, 3000 Emails, Push, Slack, MS Teams, WhatsApp, and more. | 2026-09-28 |
| Pocket Alert | Free | Send push notifications to your iOS and Android devices. Effortlessly integrate via API or Webhooks and maintain full control over your alerts. Free plan: 50 messages per day to 1 device and 1 application. | 2026-09-19 |
| pubnub.com | Free | Swift, Kotlin, and React messaging at 1 million transactions each month. Transactions may contain multiple messages.When we last read the page we cite for this offer, on 2026-09-11, we found a change we could not reconcile with the terms we publish, so we cannot confirm these terms today. | 2026-08-05 · tried 2026-09-28, no read |
| scaledrone.com | Free | Realtime messaging service. Free for up to 20 simultaneous connections and 100,000 events/day | 2026-09-28 |
| SMSGate | Free | SMS Gateway for Android™ enables sending and receiving SMS messages through your devices using cloud routing. Completely free cloud service (with recommended notification for usage above 10,000 messages/day to maintain quality for all users). | 2026-09-19 |
| SuprSend | Free | SuprSend is a notification infrastructure that streamlines your product notifications with an API-first approach. Create and deliver transactional, crons, and engagement notifications on multiple channels with a single notification API. In free plan you get 10,000 notifications per month, including different workflow nodes such as digests, batches, multi-channels, preferences, tenants, broadcasts and more. | 2026-09-13 |
| synadia.com | Free | [NATS.io](https://nats.io) as a service — The Personal Plan is $0/month and includes 2 Accounts, 10 Connections, 2 Leaf Nodes, 1 MiB Message Size, 10 GiB Network Data, and 5 GiB Storage. | 2026-09-13 / 2026-08-07 |
| webpushr | Free | Web Push Notifications - Free for upto 10k subscribers, unlimited push notifications, in-browser messagingThe page we cite for this offer states no amount, tier or rate we can read when we last looked, on 2026-09-02, so we cannot confirm these terms today. | 2026-09-02 / 2026-08-07 |
| Google Cloud Pub/Sub | Always Free | Every calendar month, the first 10 GiB of throughput identified as the Message Delivery Basic SKU for a billing account is free. After that, the price is $40 per TiB in all Google Cloud regions. | 2026-09-21 |
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