SolidInvoice

Active

Country: South Africa (ZA)
Founded: 2013
Developer: SolidInvoice team (open-source project)
Pricing: Free (open-source self-hosted); Cloud at $8/mo
Open source: Yes
Platforms: Web

Indexes

Invoice/Freelance Billing

Overview

SolidInvoice is an open-source invoicing application for small businesses and freelancers to manage clients, quotes, invoices, and payments.¹²³ It supports recurring billing, multiple currencies, tax handling, and online payments via gateways like Stripe and PayPal, with a RESTful API for integrations.¹²³

Key Features

Client Management - Manage client records, contacts, and history.
Quoting System - Create and send quotes that convert to invoices.
Invoice Management - Send, track, and manage invoices with balances.
Recurring Invoices - Automate billing on flexible schedules.
Payment Gateways - Accept payments via PayPal, Stripe, and others.
Multi-Currency Support - Bill clients in various currencies.
Tax and Discounts - Handle taxes and discounts on invoices.
RESTful API - Integrate with other services via API.

Pricing

Plan	Price	Includes
Self-Hosted	Free	Full open-source version with all features.
Cloud Hosted	$8/mo	Hosted service with online payments, recurring billing; 7-day free trial.

Platforms & Requirements

SolidInvoice is a web application requiring PHP and MySQL (only MySQL supported).⁷⁹ It runs on any server supporting these, including Docker, Linux, or NAS devices like Synology.⁴⁵⁶¹⁰ No native desktop or mobile apps; access via browser.

Integrations & Ecosystem

PayPal
Stripe
Be2bill
RESTful API
Email notifications
HipChat notifications
PDF export
Google login

Alternatives

App	Difference
Invoice Ninja	Similar open-source invoicing but with more extensive self-hosting options and broader payment integrations.
Crater	Free open-source alternative focused on simplicity for freelancers with offline capabilities.
Bonsai	Commercial tool with additional CRM and contract features beyond basic invoicing.
FreshBooks	Paid SaaS with advanced time tracking and accounting not emphasized in SolidInvoice.

Reputation

SolidInvoice is regarded as a reliable open-source invoicing tool for freelancers and small businesses, praised for its comprehensive features rivaling paid options at no cost for self-hosting.³ Users appreciate the elegant interface, API flexibility, and payment integrations.¹²⁹ Some note limitations like MySQL-only database support and the need for self-hosting technical setup.⁷

Sources (10)