Looking for feature-rich open-source software for sales, inventory, purchase and manufacturing
A feature-rich open-source ERP covering sales, inventory, purchase and manufacturing in one platform.
Looking for a base system to build and operate your own way
Highly extensible — customize and bring it in-house to fit your operations exactly.
Want pros for maintenance, but keep small customizations in-house
Lean on specialist support while handling the parts that matter to you yourself.
Email only · log in to a demo in 1 minute
Features, case studies and pricing — all in one
Talk to us about adoption or get a quote
Free PoC
No charge until you are confident it works for you.
Local-language support
A dedicated specialist supports you from rollout to operation.
Free to customize
Because it is open source, you can adapt it freely to your business.
Cloud or on-premises
Deploy in whichever environment fits your needs.
Aggregate orders across EC, wholesale and brick-and-mortar channels and manage quotes, orders, shipments, sales, invoicing and payment in one place. Real-time visibility of sales data and protection against missed billing follow naturally — driving efficiency gains and fewer human errors.
Make complex production flows — from order through procurement to manufacturing — visible and unified. Demand forecasting, production planning, inventory and quality control, and line monitoring are all in one place. Tight integration with sales and accounting drives a step-change in company-wide productivity.
Centrally manage inventory across multiple warehouses in real time. With stock inquiry, transfers, stock takes and more, you always know your true stock position — solving overstock and shortage problems while reducing the data-entry burden on staff.
Purchasing means procuring the right materials and goods at the right price and time, and managing costs and payments. Adopting a system like ERPNext.JP lets you connect information and process it precisely — things analog management struggles with — improving the efficiency of ordering and procurement.
ERPNext.JP links order, purchase, production and inventory operations with accounting, producing accurate AR/AP, costing and profit figures. Even when integrating with another accounting system, using ERPNext.JP for operations gives you a strikingly seamless flow from operations through accounting.
The top screen that gives you one-click access to every ERPNext function. Features are organized by area — sales, purchasing, inventory, accounting — so anyone can intuitively get started.
While keeping the big picture in view, you can jump into the work that matters next, dramatically improving day-to-day productivity.
Manage everything from quote creation through order, in a single screen. Products, prices and customer information are linked, so you can build a quote smoothly.
The quote you create flows into orders and invoices without re-entry, eliminating duplicate input and accelerating the sales motion.
Easily create and manage purchase requests for the items you need. Drop in a URL or fill in fields manually — anyone can do it without confusion.
Tied into approval workflows and ordering, so the entire purchasing process moves smoothly.
Manage everything from work-order creation to progress tracking in one place. Material allocation and process management can all be handled together.
Real-time visibility into the shop floor lets you respond quickly to delays and issues.
Automatically aggregate and manage monthly cost calculations. Integrated with inventory, manufacturing and purchasing data to compute accurate costs.
Reduce manual aggregation and get the figures management needs — fast.
Server costs included (within standard usage).
Zero extra fees for updates!
Build your own ERP product
on top of ERPNext.JP!
No in-house engineers? We help with
migration from your current system!
Fill in the form to apply. A confirmation email will be sent to the address you provided.
* If the confirmation email doesn't arrive, please contact us via the contact form.
Within three business days we will send a dedicated URL and login information for one account to your registered email. Open the URL in a web browser and log in. * Please use Google Chrome. During the trial period we accept questions about how to use or configure the system. We can also schedule online meetings if helpful.
If you'd like to keep using ERPNext.JP, please contact your account manager. We'll guide you through the full-contract process. You can carry over data from the trial period as-is. The trial does NOT roll over to a paid contract automatically — there's no risk of being charged unintentionally.
TIPS
COLUMN
Stories and ideas around ERP, business improvement and DX.
Practical reading on the context behind system adoption and decision-making.
CEO Yohei Okamoto
When we first encountered ERPNext, we were struck by its rich functionality and customization flexibility.
We were convinced: this is exactly the ERP that Japanese SMBs truly need.
That said, as an Indian product, there were gaps in Japanese localization and support.
So we launched ERPNext.JP to make ERPNext safe to adopt and operate in Japan.
We provide a high-quality system that is affordable, lasting, and trustworthy.
An ERP consultant with three professional disciplines — Japanese CPA, IT consulting, and software engineering — and deep on-site experience in manufacturing.
Passed the Japanese CPA exam while still in university. Joined a major consulting firm after graduation and worked on corporate revitalization, business transformation, and core system replacements. Led high-difficulty projects worth hundreds of millions of yen, and rescued failing projects in crisis — walking the full spectrum of the SI industry, both the good and the bad.
His credo is "be on the floor." Armed with his own programming skills and English fluency, he has often developed software shoulder-to-shoulder with operators next to the factory line, solving the real problems of the shop floor.
In 2015, hearing the frustration on the ground that "systems are too expensive and too rigid," he started contributing to and deploying open-source ERP, while joining a software development company to sharpen the implementation skills that bind accounting, operations, and technology together. In 2024, he founded his own firm. Today he serves as CEO of ERPNext.JP / MY HATCH, supporting the digital transformation of Japan's small and mid-sized enterprises — always from the shop floor.
Yes. ERPNext.JP's implementation support plan covers data migration from existing systems. Standard import functionality is included for master data (items, customers, BOMs, etc.) and transaction data, including bulk imports from CSV and Excel. We will scope the exact migration steps and effort during the free trial.
ERPNext.JP runs on high-performance infrastructure (12GB RAM, 6 CPU cores, 1TB SSD) with regular backups and disaster-recovery procedures as standard. All traffic is encrypted with SSL/TLS, and per-user permissions plus role-based access control minimize the risk of information leakage.
No minimum term. Contracts are monthly and you can cancel from the next month. "Try it first, stop if it doesn't fit" significantly lowers the barrier to ERP adoption. We also offer a 14-day free trial so you can confirm fit before contracting.
Accounts are unlimited. Everything is included in the base fee — no extra cost as your user count grows. You can issue accounts to all employees, part-timers, and partner-company staff as needed.
Yes. Multi-level BOM expansion, MRP (requirements calculation), lot/batch management, barcode-scan production capture, traceability, and more — all standard. Japanese manufacturing-specific practices (Kanban, internal demand notices, customer part-number variants) are also supported.
Yes — flexibly. ERPNext is built around the principle of "customization that doesn't break", with custom fields, custom scripts and custom apps as first-class extension methods. We provide hourly customization support — print formats, screen UI tweaks, workflow definitions tailored to your operations — with effort and cost estimates given before any work starts.
Yes. ERPNext.JP can ingest FAX orders end to end: digitize the FAX (PDF) → AI OCR → automatic registration as orders. This dramatically reduces manual transcription mistakes and labor for businesses with heavy FAX-order workflows.
Yes. The implementation support plan covers a 1-day training, scenario-based test data setup, and a Fit & Gap interview. During the 14-day free trial we also answer operational and configuration questions, and we can hold online meetings as needed. The barcode-driven, intuitive UI helps shop-floor staff get comfortable quickly.
Yes — the "monthly costing" approach widely required by Japanese manufacturers is supported. Rolling cost calculation closes manufacturing costs each month, accurately reflecting raw materials, labor and overhead. You can also use it for end-of-month inventory valuation and per-product / per-lot cost analysis, providing timely cost data for management decisions.
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