Adobe Creative Suite costs $660/year. Microsoft 365 costs $100/year. Here are 100 browser-based alternatives that cost exactly $0 and don't require installation.
I keep a spreadsheet. Every January, I open it and list every software subscription I'm paying for, how often I actually use it, and what it costs per use. Last year, the spreadsheet had 23 entries. The total was $287/month — $3,444/year — and I was using half of these tools less than once a week.
So I did something radical: I cancelled everything I could replace with a browser tab.
Twelve months later, I'm down to four paid subscriptions. The rest? Browser-based tools that do the same job for exactly $0, require no installation, and — this is the part that surprised me — often work better because they process everything locally on my machine.
This isn't a listicle of random websites. This is a battle-tested collection of 100 browser-based tools organized by what expensive software they replace. Every tool here meets my criteria: no mandatory signup, no watermarks, no uploading files to mystery servers.
Let's go category by category.
Adobe Acrobat Pro costs $22.99/month. That's $276/year for the privilege of editing PDF files. And honestly, most people use maybe 10% of Acrobat's features. Here are the browser-based tools that cover the other 90%:
PDF Merge — Combine multiple PDFs into a single document. Drag, drop, reorder, done. No page limits, no watermarks, no file size caps.
PDF Split — Extract specific pages or split a PDF into individual files. You'd be amazed how many people pay for Acrobat just for this.
PDF Compress — Reduce file size without visible quality loss. Crucial for email attachments and web uploads.
PDF to Word — Converts PDF to editable DOCX format with layout preservation. The formatting fidelity has gotten shockingly good.
PDF to Image — Export each page as PNG or JPEG. Useful for presentations, social media, and documentation.
Image to PDF — Batch convert photos and screenshots into a single PDF document.
PDF Page Organizer — Reorder, rotate, and delete individual pages with a visual thumbnail interface.
PDF Form Filler — Fill interactive PDF forms without printing them out like a caveman.
PDF Annotator — Add highlights, notes, stamps, and freehand drawings to existing PDFs.
PDF Watermark — Add text or image watermarks to every page. Useful for draft documents and copyright protection.
PDF Encrypt/Decrypt — Password-protect sensitive documents or remove passwords from PDFs you legitimately own.
HTML to PDF — Convert any webpage to a clean PDF. Better than the browser's built-in print-to-PDF because it handles layouts properly.
The privacy angle: Every one of these processes files locally in your browser using compiled processing libraries. Your PDF never leaves your machine. Open your browser's Network tab and verify — zero file uploads.
Total Acrobat features replaced: About 80%. The remaining 20% is OCR on scanned documents and advanced form creation, which are genuinely hard to replicate client-side.
I cancelled my Photoshop subscription six months ago. Here's what I use instead:
Full Photo Editor — Layers, masks, blend modes, curves, levels, HSL adjustment, non-destructive editing. This isn't a toy. It's a legitimate photo editor that happens to run in a browser tab. GPU-accelerated rendering means real-time processing on 50+ megapixel images.
AI Background Removal — Neural network runs directly in your browser. No cloud processing, no uploading your photos to anyone's servers. Takes about 2 seconds per image.
Image Resizer — Batch resize with presets for social media platforms, email, and web. Maintains aspect ratios and handles transparency.
Image Cropper — Rule of thirds, golden ratio, and custom aspect ratio guides. Way more useful than just dragging a rectangle.
Image Compressor — Reduce file size with quality preview. Side-by-side comparison so you can see exactly what you're losing.
Format Converter — PNG, JPEG, WebP, AVIF, GIF, BMP, TIFF, SVG, ICO. Convert between any of them.
Color Picker — Extract colors from any uploaded image with HEX, RGB, HSL, and CMYK output. Includes palette generation from photos.
Image Filter Gallery — 30+ Instagram-style filters plus manual adjustment of every parameter. Non-destructive, so you can fine-tune after applying.
Collage Maker — Grid layouts, freeform arrangements, custom spacing, background colors. Exports at print-ready resolution.
Meme Generator — I know, I know. But it's legitimately one of the most-used image tools on the internet. Clean output without the generator's watermark.
I'll be honest: professional retouching workflows (frequency separation, advanced compositing with 50+ layers, CMYK prepress work) still need Photoshop. But if you're cropping product photos, making social media graphics, or adjusting exposure on your travel pictures? The browser does it.
VS Code is already free, but there are two scenarios where a browser IDE makes more sense: when you're on someone else's machine, and when you want to prototype without setting up a full development environment.
Browser-Based IDE — 53 runtime support. Syntax highlighting, auto-complete, multi-file projects, integrated terminal. Vim and Emacs keybindings for the purists. 10+ themes including proper dark modes.
JSON Formatter — Paste minified JSON, get formatted JSON with syntax highlighting. Validates and shows error locations for malformed input.
XML Formatter — Same as above but for XML. Also converts between XML and JSON.
SQL Formatter — Beautifies SQL queries from any dialect — MySQL, PostgreSQL, SQLite, SQL Server, Oracle.
HTML Formatter — Formats and validates HTML. Catches unclosed tags and nesting issues.
CSS Formatter — Beautifies and minifies CSS. Supports SCSS syntax.
JavaScript/TypeScript Formatter — Formats code to consistent style. Handles JSX and TSX.
Markdown Editor — Live preview, export to HTML, syntax highlighting for code blocks. Way better than editing Markdown blind.
Code Diff Tool — Side-by-side comparison of two code blocks with inline change highlighting. Essential for code reviews when you're not in a Git client.
Regex Tester — Real-time matching with explanations of what each part of your pattern does. Supports JavaScript, Python, and PCRE flavors. This alone saves me 30 minutes every week.
The internet is littered with sketchy conversion sites that want your email address, limit you to one file per day, or add watermarks. Here are the clean alternatives:
All local processing. Drop a 200MB TIFF file on one of these tools and watch your Network tab — nothing gets uploaded. The browser handles it all.
Markdown to HTML — Write in Markdown, copy clean HTML. Supports GFM (GitHub Flavored Markdown) including tables, task lists, and syntax-highlighted code blocks.
HTML to Markdown — Reverse direction. Paste any HTML and get clean Markdown. Handles complex structures like nested lists and tables.
CSV to JSON — With header detection, type inference (strings vs numbers vs booleans), and nested object support.
JSON to CSV — Flattens nested objects and handles arrays intelligently. Handles messy real-world JSON that other converters choke on.
YAML to JSON — Configuration format conversion with validation. Catches the spacing issues that make YAML a nightmare.
JSON to YAML — With proper indentation and comment preservation.
TOML to JSON — For the Rust and Hugo crowd.
XML to JSON — With attribute handling options. Handles namespaces properly, which is rarer than you'd think.
TSV to CSV — Tab-separated to comma-separated and back. Handles quoted fields correctly.
Base64 Encode/Decode — Convert files, images, and text to and from Base64. Essential for working with APIs and data URIs.
Grammarly Premium costs $12/month. Its grammar checking is genuinely excellent and hard to replicate. But half the features people pay for are utilities that don't require AI:
Word Counter — Character count, word count, sentence count, paragraph count, reading time, speaking time. Better than Grammarly's because it includes density analysis and keyword frequency.
Text Diff — Compare two text blocks and see exactly what changed. Highlights additions, deletions, and modifications. Indispensable for comparing contract versions, code, or any two documents.
Case Converter — Title Case, camelCase, PascalCase, snake_case, kebab-case, UPPER CASE, lower case, Sentence case. Handles edge cases (acronyms, articles, prepositions) that naive converters botch.
Lorem Ipsum Generator — Paragraphs, sentences, or words. Also offers alternatives: Hipster Ipsum, Office Ipsum, or just random realistic-looking text.
Slug Generator — Convert any title to a URL-friendly slug. Handles Unicode, strips special characters, configurable separator.
Text to Binary / Hex / Octal — ASCII/UTF-8 text to various numeric representations. Useful for debugging encoding issues.
Line Sorter — Sort text lines alphabetically, numerically, randomly, or by length. Remove duplicates. Reverse order. Simple but surprisingly hard to find done well.
String Escape/Unescape — HTML entities, URL encoding, JavaScript string escaping, JSON string escaping. Handles all the formats you encounter in web development.
Truncate / Pad Text — Bulk text manipulation with preview. Pad to fixed width, truncate with ellipsis, wrap at column width.
Remove Duplicates — Paste a list, get unique entries. Case-sensitive or case-insensitive. Preserves original order or sorts.
Color Picker — Visual picker with HEX, RGB, HSL, CMYK, and HWB output. Includes a contrast ratio checker for accessibility compliance (WCAG AA and AAA levels).
Color Palette Generator — Generate harmonious palettes from a base color: complementary, analogous, triadic, tetradic, split-complementary. Export as CSS variables, Tailwind config, or Sass variables.
Gradient Generator — Linear, radial, and conic gradients with unlimited stops. Copies CSS directly to clipboard. Includes a gallery of popular gradients.
HEX to RGB — And RGB to HEX, HSL to HEX, CMYK to RGB, and every other permutation. With visual preview.
Color Contrast Checker — Input foreground and background colors, get WCAG compliance results. Shows minimum font sizes for each compliance level.
Color Blindness Simulator — Preview how your color scheme looks to people with protanopia, deuteranopia, tritanopia, and other color vision deficiencies. Critical for accessible design.
CSS Color Extractor — Paste CSS, get a visual list of every color used with frequency counts. Great for auditing design consistency.
API Tester — GET, POST, PUT, PATCH, DELETE with custom headers, request body (JSON, form-data, raw), authentication (Bearer, Basic, API key), and response formatting. No account required, request history stored locally.
JWT Decoder — Paste a JWT token, see the header and payload decoded instantly. Validates signatures if you provide the secret. Color-coded expiration status.
Hash Generator — MD5, SHA-1, SHA-256, SHA-384, SHA-512 from text or files. Includes HMAC variants with custom keys.
UUID Generator — Generate v1 (timestamp), v4 (random), and v7 (sortable timestamp) UUIDs. Bulk generation up to 1000 at a time.
Bcrypt Generator — Hash passwords with configurable salt rounds. Also verifies hashed passwords against plaintext. Essential for testing auth systems.
URL Encoder/Decoder — Handles the edge cases that trip up simple encodeURIComponent: Unicode, reserved characters, existing partially-encoded strings.
Timestamp Converter — Unix epoch to human-readable and back. Supports seconds, milliseconds, and microseconds. Shows the time in multiple zones simultaneously.
Cron Expression Parser — Write a cron expression, see the next 10 execution times in plain English. Finally, no more guessing whether 0 */2 * * 1-5 means every 2 hours on weekdays or something else entirely.
HTTP Status Code Reference — Every status code with explanation, common causes, and example responses. Searchable and filterable. Way faster than Googling "what is 422."
User Agent Parser — Paste a user agent string, get browser, OS, device type, and version. Useful for debugging browser-specific issues.
Scientific Calculator — Functions, constants, memory, history. Works with keyboard input. Handles complex expressions that Google's calculator chokes on.
Percentage Calculator — Every percentage operation: X is what % of Y, what is X% of Y, X is Y% more/less than what. The four variations that trip everyone up.
Date Calculator — Days between dates, add/subtract days/weeks/months/years, business days only. Handles leap years and timezone-aware calculations.
Tip Calculator — Split bill among any number of people with customizable tip percentages. Simple but used constantly.
Loan Calculator — Monthly payments, total interest, amortization schedule. Handles fixed-rate, variable, and interest-only.
BMI Calculator — With context about what the numbers actually mean and their limitations as a health metric.
Binary Calculator — Arithmetic operations in binary, octal, and hexadecimal. With step-by-step conversion shown.
Password Generator — Cryptographically secure random passwords with configurable length, character types, and pronounceability. Generates in bulk.
Password Strength Checker — Analyzes entropy, checks against common patterns and known breach databases (locally — the password never leaves your browser). Estimates crack time against modern hardware.
SSL Certificate Checker — Check any domain's SSL certificate: expiry date, issuer, chain validity, protocol support. Set up monitoring so you never get surprised by an expired cert again.
DNS Lookup — Query any DNS record type (A, AAAA, MX, CNAME, TXT, NS, SOA, PTR) for any domain. Shows TTL, propagation status across multiple resolvers.
WHOIS Lookup — Domain registration details, registrar, creation/expiry dates, nameservers. No CAPTCHA, no limits.
IP Geolocation — Where is this IP address? City, region, country, ISP, ASN. Useful for debugging CDN issues and analyzing traffic.
HTTP Header Inspector — See exactly what headers a URL returns. Check security headers (CSP, HSTS, X-Frame-Options), caching headers, and CORS configuration.
CSP Evaluator — Paste a Content Security Policy, get a detailed analysis of its strength and potential bypasses. Catches the subtle mistakes that make CSPs ineffective.
Length Converter — Metric, imperial, nautical, astronomical. Handles the weird ones: leagues, fathoms, light-years, parsecs.
Weight Converter — Grams, kilograms, pounds, ounces, stones, tons (metric and imperial), carats, grains.
Temperature Converter — Celsius, Fahrenheit, Kelvin, Rankine. Shows the formula used for each conversion because sometimes you actually need to understand the math.
Data Storage Converter — Bits, bytes, kilobytes (both 1000-based and 1024-based), up to yottabytes. Finally resolves the KB vs KiB debate by showing both.
Speed Converter — km/h, mph, m/s, knots, Mach, speed of light (c). Because yes, sometimes you need to know how many knots 120 km/h is.
Time Zone Converter — Convert between any time zones worldwide. Shows current time in multiple cities simultaneously. Accounts for daylight saving time transitions. Way more reliable than doing the math in your head.
Let me lay it out:
| Software Replaced | Annual Cost | Browser Alternative? |
|---|---|---|
| Adobe Acrobat Pro | $276 | Yes — full PDF suite (tools 1–12) |
| Adobe Photoshop | $276 | Yes — GPU-accelerated editor (tools 13–22) |
| Canva Pro | $156 | Mostly — templates are the gap |
| Grammarly Premium | $144 | Partially — utilities yes, grammar AI no |
| Postman Pro | $168 | Yes — API tester + dev tools (tools 70–79) |
| Paid converters | $60–120 | Yes — 200+ converters (tools 33–52) |
| Adobe Color + Coolors Pro | $60–120 | Yes — full color suite (tools 63–69) |
| Security scanning tools | $50–200 | Partially — basic checks (tools 87–94) |
| Total | $1,190–$1,460/year | $0 |
That's a used car payment. Every year. For software most people use a couple hours per week.
Here's my unpopular opinion: for 80% of computer users, the browser IS the operating system.
Think about what you do daily. Email? Browser. Documents? Google Docs in a browser. Communication? Slack, Teams, Discord — all have browser versions. Video calls? Browser. Music? Browser. Shopping, banking, social media, news — all browser.
The only things still tethered to native apps are creative professional tools (video editing, 3D modeling, music production) and games. And even those are migrating.
Browser-based tools aren't a compromise. They're the natural evolution. The advantages are structural:
This is the part that changed how I think about tools.
When you use Adobe Acrobat's online PDF tools, your PDF gets uploaded to Adobe's servers for processing. When you use an online image compressor, your photos go to someone's server. When you paste text into an online grammar checker, that text goes to their API.
With client-side browser tools, none of that happens. The processing runs in your browser using compiled code. Your files stay on your machine. The server delivers the application code, and then it's done — your data never crosses the network.
How to verify this yourself:
I do this test for every tool I recommend. If it fails, it doesn't make my list.
I believe in being honest about limitations. Here's what I still pay for:
Professional video editing — Browser video editors exist, but for anything beyond basic cuts and transitions, you still need DaVinci Resolve (which is free) or Premiere Pro (which isn't). The data throughput required for 4K video editing exceeds what browsers can handle reliably.
Heavy 3D work — Blender is free and runs natively. Browser-based 3D tools are fine for simple modeling but can't match the rendering pipeline of native applications.
Advanced AI writing — Grammarly's grammar engine and AI writing suggestions are genuinely hard to replicate. The text utilities I listed replace Grammarly's tool features (word count, diff, case conversion), not its AI brain.
Professional audio production — DAWs need low-latency audio processing that browsers can't consistently deliver. The Web Audio API is getting better, but it's not there yet for multitrack production.
After curating hundreds of tools, here's my rubric:
Instant red flags:
Green flags:
Here's how I organize my tools for maximum productivity:
Bookmark bar folder structure:
AkousaPDF — merge, split, compress, convertImage — editor, resize, compress, convertDev — API tester, JSON formatter, regex, JWT decoderText — diff, counter, case converterConvert — units, data formats, encodingBrowser profile tip: Create a separate browser profile just for tools. No extensions competing for memory, no logged-in sessions leaking data. A clean, fast environment dedicated to getting work done.
Keyboard shortcuts matter. The best browser tools support them. Learn Ctrl+S to save/export, Ctrl+Z/Y for undo/redo, and tool-specific shortcuts. The efficiency gap between mouse-clicking through menus and keyboard shortcuts is enormous.
Five years ago, suggesting that browser tools could replace Photoshop would've gotten you laughed at. Today, GPU-accelerated rendering in the browser means real-time manipulation of 50-megapixel images. AI models run directly in your browser tab. Compiled processing code executes at near-native speed.
Three years from now, I expect browser tools to crack:
The "you need an app for that" era is ending. Your browser is the app platform.
$1,400/year. That's what I was spending on software subscriptions for tasks I can now do in browser tabs.
I'm not anti-software. I'm anti-paying-monthly-for-something-I-use-twice-a-week. I'm anti-installing-a-500MB-application-to-convert-one-file. I'm anti-uploading-my-private-documents-to-a-random-server-because-there's-no-local-alternative.
The 100 tools in this list aren't theoretical. They're what I actually use, every week, to do real work. And they're all free.
Stop paying for software that a browser tab can handle. Your wallet — and your hard drive — will thank you.
I build and maintain a collection of 557+ browser-based tools, 108 games, and a real-time world news aggregator at akousa.net — all free, all client-side, all running in your browser. If you're tired of ad-infested tool sites that upload your files to mystery servers, come take a look.