Helios

What it does

Stop wrestling with spreadsheets. Helios is a modern invoicing tool built for independent workers — available in 7 languages (EN, FR, ES, DE, PT, IT, NL). Create invoices, send quotes, automate payment reminders, accept Stripe payments, and give clients their own portal. Includes FEC export, recurring invoices, REST API, dark mode, and a free plan. No credit card required.

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  HeliosMay 2026 · helios.today · ▲5

  I'm 15 and built this solo. Freelancers typically juggle 5-6 disconnected tools to run what is essentially a one-person business. Helios puts CRM, contracts, invoices, proposals, time tracking and client outreach in one place. Free tier available, no card required. Pro is £29/mo founding rate. Also built three free tools that don't need an account: rate calculator, invoice template, and proposal template — helios.today/tools Built on React, Node.js, Supabase and Stripe. Currently pre-revenue and would genuinely appreciate brutal feedback.

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  Manta2017 · github.com · ▲194

  Flexible invoicing app with customizable templates (Freebie)

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  I've build a stupidly simple invoicing for freelancers and contractors2024 · onigiri.one · ▲113

  Easily make, send, and share invoices — get paid faster than ever.

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  Helios2021 · ▲75

  Open-source monitoring tool for AWS serverless applications

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  Heppipay2023 · heppipay.com · ▲65

  Uncomplicated invoice management for freelancers

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  HelioApr 2026

  The business command center for freelancers & agencies

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