Levelupsoft

LEVELUPSOFT INC. · ON-PREMISE BY DESIGN

Your code. Your data. Your servers.
AI on the front line.

Build with our microservice framework and AI-driven SDLC, automate with enterprise workflows, and let AI bots become the front door to your business — handling chat and voice, inbound and outbound, and acting directly on your internal systems. All of it runs on your own infrastructure, even air-gapped.

  • 14Products & services
  • 2020OSGi MSA roots
  • On-premSelf-hosted install
  • 10+Product UI languages

Products

Levelupsoft products

Enterprise solutions are installed on your own servers. Personal apps and developer tools are ready to download. Each card links straight to the product site.

Enterprise platforms

The foundations for development, automation and collaboration, installed on your servers.

Simple Framework & Studio

On-premise

Describe the table, get the service

A pure-Java microservice framework with a code-generation Studio. It generates service code from a table spec by rules, so AI and people work on the same standard code.

  • Code-gen Studio
  • Karaf + Tomcat dual runtime
  • Zero Spring dependency
  • Built-in OAuth & AES-GCM

SSemWorks

On-premise

Workflow automation, enterprise grade

A self-hosted automation platform that joins user screens (SSemForm), files, workflows and AI agents. Kafka-based distributed execution and automatic Saga compensation handle air-gapped and high-volume workloads.

  • Kafka distributed execution
  • Saga auto-rollback
  • AI agents & MCP
  • n8n / Make import
  • SSemForm user screens

SSemBridge

On-premise

Your developers' Claude Code, anywhere, via your own server

A Remote Web IDE for enterprise and individual developers. Put a relay on your company server and watch and control CLI sessions running on each Mac from a desktop browser or phone: send prompts, approve permissions, or stop a run. A WBS board shows the work plan and progress Claude Code records for each repository in real time, and lets you answer Claude's approval and decision requests on the spot.

  • Remote Web IDE
  • Multi-CLI integration
  • Remote filesystem management
  • Self-hosted & secure
  • WBS board

Bluetong

On-premise

Your company's blueprints, drawn on your own servers

A self-hosted modeling tool for ERDs, REST APIs and sequence diagrams, on the web and as a macOS app. Tables an AI creates through MCP show up as an ERD people can check right away, and teams edit together in real time. Models and AI conversations stay on your servers.

  • ERD · REST API · Sequence
  • AI co-work via MCP
  • Real-time co-editing
  • Web + macOS app

SSemRepo

On-premise

Your code doesn't live on someone else's server

A self-hosted code repository with repos, issues, code review and wiki in one set. Keep using your git commands, and read Subversion history alongside.

  • Git + Subversion
  • Pull request review
  • CLI & AI agent guides
  • 10 UI languages

AI Front Office

Chat and voice AI bots become the first point of contact — connected to your internal systems.

SSemTalk

On-premise

AI bots at the front door of every task

A platform for building and orchestrating AI bots that serve employees and customers over chat and voice. They answer inbound inquiries, reach out proactively, and connect to your internal systems to go from lookup to completion. Every conversation and record stays on your servers. Connected to SSemWorks, the AI bots can run SSemWorks business processes directly in the middle of a conversation.

  • AI bot orchestration
  • Inbound & outbound voice bots
  • Internal system integration
  • Messaging & 2GB files
  • On-premise
  • Runs SSemWorks processes

Apps & tools for individuals

Services, apps and free tools you can download and use right away.

Services

A messaging service anyone can sign up for and use right away.

Pabal.me

Service

Important news, as fast as it gets

A fast, secure messenger inspired by the Joseon-era pabal relay. An independent MTProto-compatible service, so existing bot libraries work by changing only the address.

  • Multi-device sync
  • Voice & video calls
  • Bot API
  • macOS · Windows · iOS · Android

Apple apps

Buy once on the App Store and keep it. No subscriptions, no ads.

SSem TouchOTP

App Store

Your OTP codes, opened only by your fingerprint

A menu-bar two-factor authenticator for Mac. Secrets are sealed in the Secure Enclave and open only with Touch ID. The app has no network permission, so nothing leaves your Mac.

  • Touch ID vault
  • Fully offline
  • Auto-lock
  • Encrypted backup

SSemFonts

App Store

Your favorite fonts, now on iPhone

Import OTF, TTF and TTC fonts, preview them and install via an iOS configuration profile. Ships with 16 free fonts such as Pretendard.

  • iPhone · iOS 16+
  • Preview before install
  • 16 free fonts
  • Processed on-device

SSem MarkdownEditor

App Store

See as you write, draw as you diagram

A Mac Markdown editor with live preview, Mermaid, KaTeX and PDF export. Edit diagrams visually in Diagram Studio.

  • Diagram Studio
  • KaTeX math
  • 4 preview themes
  • PDF export

Free developer tools

Free tools that take a little weight off a developer's day.

hunsdoc

Free

Korean documents, into Markdown AI can read

A CLI and MCP server that converts HWP, HWPX, PDF and other official documents to Markdown and structured JSON, and builds official HWPX from Markdown. Works in air-gapped networks.

  • 11 input formats
  • RAG-ready chunks
  • 17 MCP tools
  • Free, MIT

SSEM JSON Editor

Free

JSON at a glance, as code and tree

A browser extension that shows code and tree views side by side to edit and validate JSON. No account and no server; it runs entirely in the browser.

  • Code + tree view
  • JSON Schema validation
  • Dark mode
  • Chrome · Firefox

SSEM Markdown Editor

Free

Markdown that reads well the moment it opens

A Chrome extension that renders .md files instantly and lets you edit and preview in split view. Your documents are never sent anywhere.

  • Mermaid · KaTeX
  • Outline sidebar
  • Split editing
  • No ads, no tracking

SSem SecuMon

Free

Scattered fail2ban, watched and enforced from one screen

A free fail2ban control console for individuals who run their own VPS or home servers. Put a small agent on each server to see who is blocked and how many times they have offended, all on one screen, and enforce bans, unbans, range blocks and country blocks with signed commands.

  • Unified fail2ban dashboard
  • Repeat-offender stages
  • Range & country blocking
  • Ed25519-signed commands

Heritage

From Simple Enterprise Platform to Simple Framework

Levelupsoft began in 2020 with Simple F/W & Studio, an OSGi-based MSA development platform. Building on that design, we spent the next two to three years creating a new product line for the AI era.

Java-based MSA framework

A REST API-based DAO client, a network F/W for legacy TCP/IP, a web-based source generator, and common services and modules.

API gateway servers

A gateway to manage and operate REST APIs with OAuth 2.0 support, a file-transfer gateway, and an internal integration server for the business zone.

Developer tooling and operations

Source management, continuous integration and delivery, automated testing, Docker and Kubernetes deployment, and data security.

That experience carried forward into Simple Framework, SSemWorks and SSemBridge for the AI era.

About

Simple structures last.

Levelupsoft listens to customers first, then builds the solution they need in the simplest structure that works. We believe being useful matters more than being clever.

  • Your servers, your data

    Code, conversations and business data belong to the customer. We design for on-premise and air-gapped installs first.

  • Simple, standard structure

    Rule-based structure gives the same output for the same input, so people and AI read and edit the same code.

  • Products we use ourselves

    We build the tools developers use daily and feed that experience back into our enterprise products.

EARLY PARTNER

We're looking for early partners

We're inviting the first teams to adopt Levelupsoft's enterprise products. For partners who help us shape the product as we build together, we offer:

Apply as a partner

  • Free PoC and installation support

  • Priority on your requirements

  • Early-partner terms

Contact

Let's talk about a demo or pilot

Product demos, trial installs, early partner applications — just send us an email.

halo@levelupsoft.com

5-6, Sangmujungang-ro 78beon-gil, Seo-gu, Gwangju, Republic of Korea