Tools for developersContracts & invoices

15 match your filters — 14 of them answered our check today.

Watching this group for 20 days · how we check

This week5 new arrivals1 stopped answering

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Live

Scans freelance contracts and flags risky clauses — like IP grabs or unlimited liability — in plain English with suggested rewrites, for freelancers without a lawyer.

No sign-up
What to know
How it works
paste contract text; flags risky language across six categories with plain-English explanations and rewrite suggestions
Pricing
no signup required to try
Best for
freelance developers signing client contracts without legal review

Watched for 5 days · last checked today

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An offline tool for validating Saudi e-invoice QR codes, UBL XML files, and PDF/A-3 invoices, with VAT calculation, on-device.

Works offlineData stays with you
What to know
How it works
Validates invoice QR codes, UBL 2.1 XML files, and PDF/A-3 e-invoices, scanning QR codes, inspecting invoice data, and calculating VAT directly on-device with no cloud uploads.
Best for
Businesses, accountants, auditors, and developers handling Saudi e-invoices.
Watch out
Independent application, not affiliated with or endorsed by ZATCA or any government authority.

Watched for 8 days · last checked 6d ago

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A free collection of 47+ browser-based developer and data tools (JSON/XML formatting, PDF and image compression, resume and invoice parsing, SEO analysis, screenshots, file sharing), many also available as an API.

Free
What to know
How it works
Browser-based tools for formatting, compressing, parsing, and analyzing files and data; many expose APIs for integration into your own applications.
Pricing
Free.
Best for
Developers, designers, and data teams needing quick utility tools.

Watched for 11 days · last checked 5d ago

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A freelance business-ops hub for clients, project tracking, contracts, invoicing and expenses, with GitHub and Stripe/PayPal baked in, aimed squarely at freelance developers.

What to know
How it works
A single interface to manage clients, track project progress, and handle contracts, invoicing, time tracking and expense reporting, with GitHub, Stripe and PayPal integrations.
Best for
Freelance developers who want client and business admin tools built around their existing GitHub and payment workflow.

Watched for 18 days · last checked 2d ago

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Generates PDFs like invoices and certificates from WYSIWYG templates via API or Zapier instead of manual document assembly.

What to know
Pricing
free tier: 100 PDFs/month, then paid plans

Watched for 1 day · last checked 1d ago

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Free e-signature tool for one-off, low-stakes agreements where signers don't need accounts, and the document deletes itself after everyone signs.

Free
What to know
How it works
upload a PDF, add signers in order, each signs their turn automatically, document disappears once complete
Pricing
free for chains up to 2 signers
Watch out
has an MCP connector for developer/agent use, but core product is a simple signing flow

Watched for 4 days · last checked 2d ago

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A billing and business-management app (invoices, customers, expenses, an AI assistant) built in Python/Flask and sold as ready-to-use source code. For developers and freelancers wanting a boilerplate, not an off-the-shelf SaaS.

What to know
How it works
A billing and business-management app built in Python/Flask with an integrated AI assistant, covering invoices, customers, expenses and subscriptions through a dashboard.
What's different
Sold as ready-to-use source code with documentation rather than a hosted SaaS subscription.
Best for
Developers and freelancers who want a boilerplate billing app to deploy themselves, not an off-the-shelf service.

Watched for 17 days · last checked 11d ago

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A local, open-source workflow that turns specs and behavior checks into mutation-tested, auditable release evidence for AI-assisted code — for dev teams who need proof it actually works.

Open source
What to know
How it works
A local, open-source workflow that turns specifications, behavior checks, design-token contracts and policy verification into mutation-tested, auditable release evidence for software delivery.
Best for
Development teams shipping AI-assisted code who need proof it actually works, not just that it was tested.

Watched for 13 days · last checked 11d ago

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A self-hosted client, project and invoice tracker you deploy yourself for a one-time $49 instead of paying HoneyBook or Bonsai monthly. Built for developer-comfortable freelancers, not a no-code SaaS pick.

Open sourcePay onceNo subscriptionCan export my data
What to know
How it works
Manage clients, projects, and invoices in one place: track billable hours, generate invoice PDFs, and monitor monthly revenue with a built-in chart. Self-hosted on your own Railway + Supabase stack, built with React 19, Express 5, PostgreSQL, and Drizzle ORM, deployable in under 15 minutes.
What's different
Sold as a one-time $49 purchase with full source code (MIT licensed) instead of paying HoneyBook ($19/month) or Bonsai ($25/month) recurring fees.
Pricing
One-time $49 purchase, no recurring fees.
Best for
Freelance developers, designers, and consultants at $0-$5k/month who want a real CRM before paying for Bonsai.

Watched for 18 days · last checked 11d ago

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A free invoice generator with country tax presets (GST/VAT) that lets you create and download a PDF invoice in under 2 minutes with no signup.

Domain registered 4 months ago

FreeNo sign-up
What to know
How it works
fill invoice form, download PDF instantly, supports 11 country tax presets
Pricing
free with watermark, Pro $39/year removes watermark and adds history/branding

Watched for 5 days · last checked today

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AI security analysis tool that scans Solidity smart contracts for vulnerabilities and produces audit reports.

What to know
How it works
Scans Solidity smart contracts to identify vulnerabilities and insecure coding patterns, delivering audit reports with remediation guidance.
Best for
Developers building secure Web3 applications.

Watched for 3 days · last checked 1d ago

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PDFWix

Live

Suite of 24 free online PDF tools covering merging, splitting, compressing, converting, and editing.

Domain registered 2 months ago

FreeNo sign-upNothing to install
What to know
How it works
Browser-based PDF toolkit (merge, split, convert, sign, redact, protect, and more) running mostly via WebAssembly so files never leave the device.
What's different
No daily task caps (unlike iLovePDF's 2/day limit), no watermarks, no forced account creation.
Pricing
Free, no signup, no daily limits.
Best for
Anyone needing PDF editing on Windows, Mac, iPhone, Android, or Chromebook without installing software.

Watched for 8 days · last checked 8d ago

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A hub of 170+ free browser-based tools (PDF, image, resume/ATS and more) that run client-side, so files never leave your device. A broad utility site, not a specialized tool for one profession.

FreeNo sign-upNothing to installData stays with you
What to know
How it works
A hub of 170+ browser-based tools across 16 categories, including a PDF toolkit (compress/merge/split), an AI resume builder with ATS scoring, and financial calculators for India (GST, PPF, EPF) and the US (401k, HSA).
What's different
Processing happens locally in the browser via WebAssembly, so files never reach a server, and there is no sign-up, daily limit, or watermark.
Pricing
Free, no account required.
Best for
Anyone needing quick PDF, resume/ATS, or financial calculations without installing software or creating an account.

Watched for 14 days · last checked 2d ago

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A Notion template for freelancers to run client work, projects, tasks and invoices in one place — built for freelancing generally, not any single profession despite listing several.

What to know
How it works
A Notion template that lets freelancers manage clients, projects, tasks, invoices and proposals in one workspace instead of juggling multiple apps.
What's different
Built to work across freelance disciplines rather than for one specific profession.
Best for
Freelancers (designers, developers, writers, marketers, consultants) who already use Notion and want one system for running their business.

Watched for 18 days · last checked 2d ago

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A free browser tool that generates professional invoices as PDFs with no signup.

FreeNo sign-up
What to know
How it works
Generates professional invoices instantly with one-click PDF download, 20+ currencies, country-specific templates for 20 countries, and industry-tailored designs.
What's different
No signup and no watermarks, with 6 professional template styles.
Pricing
100% free with no hidden fees.
Best for
Freelancers and small businesses needing quick invoicing without expensive software.

Watched for 18 days · last checked today

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