20 Free Browser Tools That Replace Paid Software (-99/mo)

I built 20 free browser tools that replace software people pay $10-99/month for. Everything runs client-side — your files never leave your device.

No signup. No upload. No tracking. Just open and use.

PDF Suite (replaces Adobe Acrobat $13/mo, SmallPDF $12/mo)

• PDF to JPG Converter — convert PDF pages to high-quality images. Choose DPI (72/150/300), select specific pages, download individually or as ZIP. Uses Mozilla's PDF.js entirely in your browser.




• Image to PDF — combine multiple JPG/PNG/WebP images into one PDF. Choose page size (A4/Letter/Legal), orientation, margins, and quality.




• PDF Watermark — add text watermarks to any PDF. Custom text, font size, opacity, rotation angle, and color. Applied to all pages instantly.




• PDF Rotate — rotate pages 90°, 180°, or 270°. Rotate all pages or select specific ones. Fix upside-down scans in seconds.

All four use pdf-lib.js or PDF.js — zero server involvement. No file size limits.

Developer Tools (replaces transform.tools, Carbon, gitignore.io)

• JSON to TypeScript — paste JSON, get TypeScript interfaces. Handles nested objects, arrays, union types. Auto-converts as you type with options for export, readonly, and optional fields.




• Code to Image — create beautiful code screenshots like Carbon/ray.so but 100% private. 25+ languages, 8 themes (Atom One Dark, Monokai, Dracula, Nord...), gradient backgrounds.




• .gitignore Generator — select from 30+ technologies (Node, Python, Java, Go, Rust, React, Docker, Terraform...) and get a ready-to-use .gitignore file. Search, select, download.




• Subnet Calculator — IPv4 CIDR calculator with network address, broadcast, host range, wildcard mask, and a full /0-/32 reference table.




• CSS to Tailwind — paste CSS properties, get Tailwind utility classes. Supports 60+ properties including spacing, flex, grid, colors, typography. Uses arbitrary values for non-standard sizes.

SEO Tools (replaces Rank Math $59/yr, Ahrefs $99/mo)

• Schema Markup Generator — generate JSON-LD structured data for Google rich results. 8 types: FAQPage, Article, Product, LocalBusiness, Organization, BreadcrumbList, HowTo, Event. Dynamic forms per type.




• Robots.txt Generator — create robots.txt with presets: Allow All, Block All, Block AI Crawlers (GPTBot, ClaudeBot, Google-Extended), WordPress, E-commerce. Custom user-agent rules.

Legal Document Generators (replaces LegalZoom $79, PandaDoc $19/mo)

• NDA Generator — create mutual or unilateral NDAs. 5 optional clauses including AI training prohibition (2026 essential). Customize duration, governing law, dispute resolution. PDF download.




• SLA Generator — service level agreements with uptime tiers (99%-99.99%), response times by priority, service credit penalties. Perfect for SaaS and cloud providers.

Business & Work Tools (replaces Miro $8/user, LivePlan $20/mo, Toggl $10/user)

• SWOT Analysis Generator — enter strengths, weaknesses, opportunities, threats. Get a clean 4-quadrant diagram. Download as PDF or PNG for presentations.




• Business Plan Generator — one-page business plan: mission, problem/solution, market, revenue model, team, financials. PDF download for investor meetings.




• Receipt Generator — professional receipts with line items, tax, discounts, logo upload. 11 currencies. Download as PDF, PNG, or copy image.




• Timesheet Calculator — weekly hours tracker with clock-in/out, breaks, overtime calculation (1.5x or 2x), and gross pay.




• Meeting Agenda Generator — topics, time allocations, presenters, attendees. PDF download for team meetings, standups, board meetings.

Freelance & Design

• Freelance Proposal Generator — project scope, deliverables, timeline, pricing (fixed/hourly/retainer), payment terms, signature blocks. PDF download.




• Image Color Palette Extractor — upload any photo and extract dominant colors using k-means clustering. HEX, RGB, HSL values. Click to copy.

Why browser-based matters

Every one of these tools processes data locally in your browser. Your PDFs, business plans, NDAs, and code never touch a server.

This matters because:

• The FBI warned about fake online PDF converters injecting malware (March 2025)


• Multiple conversion sites leaked uploaded documents (passports, contracts)


• Your business data is nobody else's business

All 20 tools are part of Teamz Lab Tools — 1,300+ free browser tools covering dev, finance, legal, design, SEO, and more.

What paid tool would you most want a free browser alternative for? Building the next batch based on demand.

Originally published at https://tool.teamzlab.com