Sold by: Voxell Inc
Deployed on AWS
Real-time state sync for web and edge apps. A ~1 KB browser SDK plus a sync endpoint you deploy in your own AWS account: local-first, last-write-wins, microsecond round trips. TLS in transit, nothing at rest, OpenTelemetry metrics. No Kafka or RabbitMQ to run.
Overview
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Lux Sync: Real-Time State Sync in your AWS account
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Lux Sync - Real-Time State Synchronization
Keep your app's state in sync across every device and browser tab, in real time, without running a message queue. Lux Sync is a ~1 KB client SDK plus one lightweight sync endpoint you deploy in your own account. State is local-first, so reads are instant and work offline; changes sync in the background. No Kafka, no RabbitMQ, no ZooKeeper.
Why teams choose Lux Sync
Real-time dashboards, AI agents, internal tools, and collaborative UIs usually mean standing up an enterprise message queue, then inheriting partition management, consumer groups, and a cluster to babysit. That is a lot of operational weight for what is really a state-sync problem. Lux Sync replaces it with a purpose-built engine small enough to embed in the browser and fast enough for latency-sensitive workloads.
How it works
Drop-in browser SDK - Add @voxell/lux (JavaScript/TypeScript, ~1 KB, zero dependencies, no build step). It handles caching, an offline queue with replay, and reconnection. Your endpoint, your account - Deploy the sync endpoint on Cloudflare Pages + KV, or the broker container on Amazon ECS, EKS, or EC2. The SDK points at your endpoint; nothing routes through Voxell. Local-first, last-write-wins - Reads hit the local cache instantly, even offline. Writes sync in the background. Optional WebSocket push delivers updates the moment they change.
Performance
Nanosecond in-memory state operations on the host. depending upon your topology that is typically Microsecond local sync round trips.
- No polling, no batch windows - state propagates the instant it changes.
Security
Encryption in transit - TLS 1.3+ served by the broker out of the box, or terminated at your ALB, Kong, or NGINX with your own certificate. No data at rest - Lux Sync is in-memory and local-first. State lives in the client and in broker memory; nothing is persisted server-side, so there is no datastore to breach. Optional durability is bring-your-own and inherits your store's encryption. Signed licensing - The broker license is an RS256-signed token verified locally on boot. API keys are 128-bit random secrets.
Observability
OpenTelemetry native - The broker exports OTLP metrics to any OpenTelemetry Collector you run. Route them to Prometheus, Grafana, Datadog, or CloudWatch, with no vendor lock-in and nothing broker-specific to maintain. Zero hot-path cost - Metrics are emitted off the synchronization path, so observability never slows a write. Opt-in.
Use cases
Fintech real-time dashboards - Push live trading or portfolio metrics to browser clients the instant data changes, supporting hundreds of concurrent analyst sessions with sub-millisecond propagation. AI agent coordination - Multi-agent workflows share fresh state without round-tripping a database, ideal for orchestration layers that fan out tasks across inference workers. Logistics and operations tools - Multi-user admin panels for warehouse or fleet management stay consistent across tablets and desktops; no stale-read bugs when operators update order status simultaneously. Edge-to-cloud IoT and point-of-sale - Low-latency state between edge devices and cloud, keeping retail terminals or sensor networks synchronized even during intermittent connectivity.
Deploy in minutes
- Subscribe on AWS Marketplace. Start free with 10,000 sync operations per month.
- Sign in at the Voxell portal and link your entitlement to get your SDK key.
- Deploy your sync endpoint (Cloudflare Pages + KV, or the broker container).
- Add @voxell/lux, point it at your endpoint, and wire load() and save().
Full guides and SDK reference: https://voxell.ai/docs
About Voxell
Voxell Inc builds developer infrastructure for real-time applications. Lux Sync is our state-synchronization product, designed for speed, simplicity, and no operational burden.
Highlights
- Ship real-time features without messaging infrastructure. Lux Sync replaces Kafka, RabbitMQ, and AMQ with a ~1 KB SDK and one endpoint you deploy yourself - no ZooKeeper, no partitions, no consumer groups. Your team builds product instead of operating a queue cluster.
- Fast, secure, and nothing at rest to breach. Nanosecond in-memory updates and microsecond local round trips, TLS 1.2+ in transit, and RS256-signed licensing - on an in-memory design that persists no customer data server-side.
- Deploy in your account, observe with OpenTelemetry. Run the SDK and endpoint on Cloudflare, ECS, EKS, or EC2, or behind the gateway you already run. Native OTLP metrics export to Prometheus, Datadog, or CloudWatch with no vendor lock-in.
Details
Sold by
Delivery method
Deployed on AWS
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Features and programs
Financing for AWS Marketplace purchases
AWS Marketplace now accepts line of credit payments through the PNC Vendor Finance program. This program is available to select AWS customers in the US, excluding NV, NC, ND, TN, & VT.
Pricing
Pricing is based on the duration and terms of your contract with the vendor. This entitles you to a specified quantity of use for the contract duration. If you choose not to renew or replace your contract before it ends, access to these entitlements will expire.
Additional AWS infrastructure costs may apply. Use the AWS Pricing Calculator to estimate your infrastructure costs.
Dimension | Description | Cost/month |
|---|---|---|
Developer Free | Free evaluation entitlement for one buyer-operated Lux broker. Includes Lux SDK access, Marketplace activation, documentation, Living FAQ support, and up to 10,000 sync operations per month. No guaranteed human support. | $0.00 |
Production | Self-serve production entitlement for one buyer-operated Lux broker. Includes Lux SDK access, Marketplace activation, signed broker license, support portal access, best-effort activation support, and up to 2 million sync operations per month. | $249.00 |
Business Premium | Business entitlement for production Lux deployments. Includes signed broker licensing, support portal access, priority async support, diagnostics review, production issue triage, and up to 25 million sync operations per month. | $999.00 |
Dimensions summary
This listing offers three entitlements, each covering one buyer-operated Lux broker deployed in your own account. They scale by monthly sync-operation allowance and support level. Developer Free covers evaluation with a small operation cap and no guaranteed human support. Production adds a signed broker license, support portal access, and best-effort activation support at a higher operation cap. Business Premium raises the operation cap further and adds priority async support, diagnostics review, and production issue triage. You pick the tier matching your operation volume and support needs.
Top-of-mind questions for buyers
A sync operation is a state change relayed through your broker. The broker keeps active application state in memory and pushes each update to connected clients over a live WebSocket. Real-time delivery to multiple clients is included, so fan-out does not multiply your operation count the way per-message metering does.
Each entitlement sets a monthly sync-operation ceiling: 10,000 for Developer Free, 2 million for Production, and 25 million for Business Premium. If your volume grows past your tier's cap, you move to the entitlement with the allowance matching your usage. The marketplace listing does not describe automatic overage billing, so confirm cap-exceeded behavior with the vendor.
Each entitlement covers one buyer-operated Lux broker. You deploy the broker in your own cloud account, so your state stays on infrastructure you control. Running multiple brokers requires a separate entitlement per broker. The tiers differ by operation allowance and support level, not by broker count.
voxell.ai
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Vendor refund policy
Lux Sync software charges are eligible for refund if cancelled within 48 hours, consistent with AWS Marketplace handling. After 48 hours, Voxell reviews refund requests case by case for duplicate purchase, activation failure, billing error, or unresolved product defect. Refunds exclude buyer AWS infrastructure, third-party services, and customer-managed deployment costs. Contact support@voxell.ai or https://voxell.ai/support/ .
Legal
Vendor terms and conditions
Upon subscribing to this product, you must acknowledge and agree to the terms and conditions outlined in the vendor's End User License Agreement (EULA) .
Content disclaimer
Vendors are responsible for their product descriptions and other product content. AWS does not warrant that vendors' product descriptions or other product content are accurate, complete, reliable, current, or error-free.
Delivery details
Software as a Service (SaaS)
SaaS delivers cloud-based software applications directly to customers over the internet. You can access these applications through a subscription model. You will pay recurring monthly usage fees through your AWS bill, while AWS handles deployment and infrastructure management, ensuring scalability, reliability, and seamless integration with other AWS services.
Additional details
Usage instructions
To activate Featherweight Sync, please complete the registration on Voxell's developer portal. After successful activation, you will receive a client key (fw_live_...) to configure your SDK synchronization endpoints.
Resources
Vendor resources
Support
Vendor support
Self-Serve Support - All Plans
Every Lux Sync customer has access to the Living FAQ at https://voxell.ai/support - an AI-powered support assistant built on Voxell Answers that responds from architecture, troubleshooting, and SDK documentation with citations back to the source material. Sign in and link your AWS Marketplace entitlement to access it immediately.
Priority Support - Enterprise Plan
Enterprise entitlements unlock priority ticketing from the same support portal, 1 business day (US PST) response. Attach a redacted lux diag diagnostic bundle to your ticket and our engineers will respond within your SLA window. Mission critical support plans available upon request.
Email Support
Reach the Voxell support team directly at support@voxell.ai for any questions about your subscription, technical issues, troubleshooting, or refund requests.
Documentation
Deployment guides, broker configuration references, and the full SDK reference are available at https://voxell.ai/docs . Documentation covers installation, authentication, state topic management, and common integration patterns.
Getting Help With Your Subscription
For issues related to AWS Marketplace billing, entitlement linking, or subscription management, contact support@voxell.ai with your AWS account ID and we will assist you promptly.
AWS infrastructure support
AWS Support is a one-on-one, fast-response support channel that is staffed 24x7x365 with experienced and technical support engineers. The service helps customers of all sizes and technical abilities to successfully utilize the products and features provided by Amazon Web Services.
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