Linbox

also rendered as Uselinbox

A browser extension that brings labels, reminders, and shortcuts to the LinkedIn inbox

www.uselinbox.com

At a glance

Founded
2026
Headquarters
São Paulo, Brazil
Status
Active
Category
Sales Tools
Founder
Chico Carrizo
Legal entity
Dende Labs Tech Ltda (self-declared)
Employees
1–10
Ownership
Independent
Funding
Bootstrapped

Linbox (also referred to by its domain, uselinbox.com) is a browser extension that reorganizes the LinkedIn inbox in place — layering labels, follow-up reminders, message snippets, split views, and keyboard shortcuts on top of LinkedIn’s native messaging, without changing LinkedIn itself or storing the underlying messages.12 It is built by Dende Labs, a São Paulo software studio founded by Chico Carrizo, and launched in 2026.23

Product

Linbox is aimed at “people who take LinkedIn DMs seriously” — founders, recruiters, consultants, creators, and solopreneurs who run real business relationships through LinkedIn messaging.1 Rather than exporting messages or automating outreach, it works as a productivity layer over the inbox the user already has: you keep your conversations on LinkedIn and simply get a better way to work through them.1

The flow is simple — install the Chrome extension, sign in at app.uselinbox.com, and your existing LinkedIn conversations load into a reorganized view.2 Core features include:

  • Labels — tag conversations by client, deal stage, or any custom category, with one-click filtering.1
  • Reminders — set a follow-up reminder on any conversation so it resurfaces exactly when you need it.1
  • Snippets — save and reuse message templates instead of retyping.2
  • Keyboard shortcuts — single-key actions (A to archive, S to label, D to set a reminder, and more) for fast triage.14
  • Split inbox — separate conversations into focused views such as Primary, Recruiting, and Networking.1
  • Sweep — bulk-archive old conversations to clear the backlog.4
  • Plus private notes, inbox filters, dark mode, real-time updates, and cross-device sync.2

Privacy is a stated design principle. Linbox uses the user’s existing LinkedIn session — no separate password or data export — and, per its Chrome Web Store listing, “Your LinkedIn credentials are never stored” and “Message content is not saved on our servers.”2

Pricing

Linbox’s published pricing as of June 2026:4

PlanPriceNotes
Starter$29/mo, or ~$23/mo billed annually (up to 20% off)Unlimited custom labels, follow-up reminders, keyboard shortcuts, split inbox, sweep, priority support
ProComing soonEverything in Starter plus HubSpot integration, Sales Navigator messages, third-party integrations, advanced analytics, dedicated support

Every plan starts with a 7-day free trial, no credit card required, and can be cancelled anytime from account settings.14

Company and founder

Linbox is a product of Dende Labs (legal entity Dende Labs Tech Ltda), a São Paulo software studio whose tagline is “We build B2B software that earns its place.”23 By the company’s own account, Dende Labs “builds B2B software products, including Linbox and Atomus,” and its founder is Chico Carrizo.3 Atomus — its second live product — offers production LinkedIn data APIs for profile enrichment and engagement data, which places Linbox inside a small, focused portfolio rather than standing as a one-off.3

Dende Labs positions itself as deliberately founder-led and direct: “Built by a founder you can reach. No forms, no sales team,” with the fastest path to the company being a LinkedIn message straight to Carrizo.3 For a tool whose buyers are themselves LinkedIn-native operators, that reachability doubles as positioning — the maker lives in the same inbox the product is built to tame.

Comparison with similar tools

LinkedIn’s native inbox offers no labels, reminders, or saved views, which has created a small category of “LinkedIn inbox managers.” All pricing below comes from each vendor’s published pages.

ToolStarting priceForm factorFocus
Linbox$29/mo (7-day trial)4Chrome extension over the native inbox1Labels, reminders, snippets, and shortcuts for DM-heavy professionals1
Kondo$28/user/mo5Chrome extension5Inbox speed, productivity, lead capture5
LinkeezySubscription (free trial)6Extension + app6Inbox organization plus content feeds6
LeadDelta~$29/mo7Extension + web app7Connection and lightweight CRM management7
LinkedIn (native)FreeBuilt inBasic messaging; no labels or reminders1

Within this set, Linbox’s distinguishing choices are a keyboard-first interaction model, an explicit “we don’t store your messages” privacy stance, and a single, simple Starter price rather than per-seat or CRM-tier pricing.142

Alternatives

  • Choose Kondo if you want a more established LinkedIn inbox manager with per-seat pricing and built-in lead-capture workflows.5
  • Choose Linkeezy if you want to combine inbox organization with curated content feeds in a single tool.6
  • Choose LeadDelta if your priority is managing and enriching your LinkedIn connection graph as a lightweight CRM, not just the inbox.7
  • Choose Linbox if you want a fast, keyboard-driven layer that simply makes the native LinkedIn inbox manageable — labels, reminders, and shortcuts — from a privacy-first, founder-led product at a single flat price.142

Recent activity

  • June 2026. The Linbox Chrome extension reached version 0.2.0 (listed under the Communication category), reflecting active early development.2
  • 2026. Public launch of Linbox by Dende Labs, alongside its sibling product Atomus.13
  • Roadmap. A Pro tier with HubSpot and Sales Navigator integrations, additional third-party integrations, and advanced analytics is listed as “coming soon.”4

As a 2026 launch, Linbox’s public footprint so far is concentrated on its own site, the Chrome Web Store, and the founder’s LinkedIn presence rather than mainstream press.8

Footnotes

  1. Linbox homepage (positioning, features, target audience, free-trial terms). Retrieved June 6, 2026. https://www.uselinbox.com 2 3 4 5 6 7 8 9 10 11 12 13 14

  2. Linbox on the Chrome Web Store (publisher DENDE LABS TECH LTDA; version 0.2.0, updated June 2, 2026; feature list; “credentials never stored,” “message content is not saved on our servers”). Retrieved June 6, 2026. https://chromewebstore.google.com/detail/linbox/jlpgdhlgnjpddleoklbaggcknjcjolcm 2 3 4 5 6 7 8 9 10

  3. Dende Labs company site (Organization schema naming founder Chico Carrizo; “builds B2B software products, including Linbox and Atomus”; “a founder you can reach” positioning). Retrieved June 6, 2026. https://dendelabs.com 2 3 4 5 6

  4. Linbox pricing page (Starter $29/mo, or ~$23/mo billed annually with up to 20% off; Pro “coming soon”; 7-day free trial, no card). Retrieved June 6, 2026. https://www.uselinbox.com/pricing 2 3 4 5 6 7 8

  5. Kondo pricing and homepage. Retrieved June 6, 2026. https://www.trykondo.com/pricing 2 3 4

  6. Linkeezy homepage. Retrieved June 6, 2026. https://www.linkeezy.com 2 3 4

  7. LeadDelta pricing. Retrieved June 6, 2026. https://leaddelta.com 2 3 4

  8. General web review of Linbox’s public presence (own site, Chrome Web Store, founder channels). Retrieved June 6, 2026.

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