#security software Startups & Tools

Discover the best security software startups, tools, and products on SellWithBoost.

Claspt
Claspt

Combining password management with note-taking in a single application addresses a genuine friction point in how people organize sensitive information today. Most users juggle separate tools for these tasks, copying and pasting credentials next to setup instructions or duplicating sensitive data across multiple platforms. Claspt consolidates this workflow by letting users store passwords, write notes, and encrypt sensitive fragments within the same interface—all kept offline on their computer rather than synced to cloud servers. The product targets privacy-conscious users and those skeptical of subscription lock-in. By design, Claspt requires no account, no credit card, and remains free indefinitely on desktop. This eliminates a common pain point with password managers: the feeling of data entrapment. Users gain the ability to export their vault and own their information completely, with data ownership positioned as a core differentiator. What distinguishes Claspt is its flexibility in how users structure sensitive data. Rather than forcing rigid fields (username, password, URL) that feel inadequate for real-world scenarios—like WiFi credentials with router notes or software licenses with installation instructions—the product lets users write freely within a rich text editor and selectively encrypt portions of their notes. This approach mirrors how people naturally organize information: as prose with protected sections rather than form-filling exercises. The feature set reflects this philosophy. The interface supports headings, bold, links, tables, checklists, and code blocks with syntax highlighting. Sensitive data unlocks via fingerprint, Face ID, or a master password, with bank-grade encryption applied at the item level. The product runs on macOS, Windows, and Linux, with browser extensions for Chrome, Edge, Brave, and Arc providing autofill functionality. Mobile apps for iOS and Android are listed as coming soon. The business model is transparent. The desktop app remains free perpetually with no friction. Mobile access and cross-device sync require a Pro subscription tier, though specific pricing is not detailed on the site. This creates a natural upgrade path without compromising the core value proposition for desktop-centric users. Claspt occupies a practical middle ground: more flexible than rigid password managers, more secure than keeping credentials scattered across notes apps, and more private than cloud-synced alternatives. It solves a real coordination problem that most users encounter but rarely address directly.

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Echosy
Echosy

Privacy-focused audio transcription has become increasingly important as cloud-based services dominate the market, and Echosy addresses this gap directly by delivering professional-grade transcription entirely on macOS devices. The product targets professionals, educators, and content creators who need reliable transcription without surrendering their audio to external servers. The standout differentiator is its commitment to local processing. All transcription, summarization, and dictation happens on the user's Mac, eliminating latency and privacy concerns associated with cloud uploads. Rather than locking users into a single transcription model, Echosy supports multiple ASR engines including Qwen3-ASR and MLX Whisper, with GPU acceleration to optimize performance on Apple Silicon and Intel chips. This flexibility in model selection distinguishes it from more rigid competitors. Core capabilities span three major use cases. Live transcription captures both system audio and microphone input simultaneously with real-time timestamps, suitable for recording calls, lectures, and presentations. System-wide dictation activates anywhere on macOS via hotkey, with an Editor Mode that automatically inserts line breaks during pauses and supports voice-controlled formatting. File transcription accepts common audio and video formats for batch processing existing content libraries. What sets Echosy apart further is its integration with multiple LLM providers for summarization. Rather than forcing dependency on a single service, the platform supports OpenAI, Gemini, Ollama, and compatible APIs, allowing users flexibility in how they handle summarization workflows. Beyond summaries, users can chat directly with transcripts, extracting insights and action items. The service maintains searchable session history with audio replay, creating an archive of past recordings that remains fully accessible. The product is positioned as free-to-use software for macOS 14 and above, supporting both Apple Silicon and Intel architectures, with iOS availability as well. The emphasis on "no cloud, no latency, no compromises" clearly resonates with privacy-conscious users fatigued by default transcription workflows that involve external servers. For users skeptical of cloud-dependent transcription tools, Echosy offers genuine autonomy. It removes the friction of uploading files and waiting for remote processing, instead delivering instant results locally. The combination of multiple ASR models, flexible LLM integration, and comprehensive session management positions it as a credible alternative to cloud-centric competitors.

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Locksy - Tab Locker & Password Protection
Locksy - Tab Locker & Password Protection

Browser tabs containing bank logins, client files, and sensitive emails remain completely unprotected throughout the workday. Locksy solves this by adding encryption and automatic locking directly within the browser, eliminating the need for traditional password managers or manual security rituals. The product targets anyone who handles confidential information in a browser but finds existing security tools either invasive or inconvenient—remote workers, consultants, and professionals dealing with sensitive client materials fall into this category. Locksy's defining characteristic is its refusal to rely on cloud infrastructure. All encryption happens locally on the user's device, meaning data never leaves the browser itself. This architecture eliminates an entire category of risk that cloud-based competitors cannot escape: the possibility of a central breach, subpoenaed logs, or a company pivoting toward data monetization. The product functions offline, removing dependency on internet connectivity for basic security operations. Auto-locking addresses the behavioral side of security—where users fail to manually protect information. By making protection automatic rather than optional, the product closes the gap between intention and action. The company's bootstrapped foundation shapes its entire approach differently than venture-backed security startups. While competitors pile on features to justify premium subscriptions, Locksy provides free access to core functionality. This reflects confidence in the value proposition and an emphasis on removing adoption friction rather than maximizing revenue per user immediately. The founders articulate their philosophy clearly: they built Locksy out of frustration with security products that sacrifice usability in the name of safety. That focus on combining practical convenience with actual security distinguishes the positioning. Rather than attempting to replace password managers or become an identity platform, Locksy tackles one specific problem exceptionally rather than many problems adequately. The product mentions military-grade encryption, though specifics on cryptographic standards or implementation details aren't disclosed in available materials. For a security product, greater technical transparency would strengthen confidence among informed users, though the offline-first architecture already eliminates major attack surfaces that cloud competitors face. Locksy represents a meaningful attempt to solve a real problem—unprotected browser tabs—without the surveillance capitalist undertones that plague many privacy-focused tools.

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