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Desk Setup Visualizer
Visually plan multi-monitor desk setups with front and top-down views.
Use Tool ➜TechCompare
Quickly compare device sizes and specifications with clear visuals and helpful tools.
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Tools
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Screen Size Visualizer
Compare screen sizes side-by-side to visualize physical dimension differences.
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Curved Monitor Visualizer
Visualize monitor curvature radius (1000R, 1500R, 1800R) to see the real curve.
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Aspect Ratio Visualizer
Visually compare width differences between 16:9, 21:9, and 32:9 monitors.
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PPI & Retina Calculator
Calculate PPI and Retina distance for your display.
Use Tool ➜🛋️
TV Viewing Visualizer
Find the ideal TV or monitor viewing distance with an interactive room layout.
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Display Bandwidth Calculator
Check if your HDMI/DP cable supports your resolution and refresh rate.
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FPS Visualizer
Visualize the impact of different FPS settings on your game experience.
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RAID Calculator
Calculate usable capacity and fault tolerance for RAID 0, 1, 5, 6, and 10.
Use Tool ➜🌐
Subnet Calculator
Calculate network address, broadcast address, and usable IP ranges for IPv4/IPv6.
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CHMOD Configurator
Calculate Linux file permissions using checkboxes or octal numbers, then view the matching symbolic notation.
Use Tool ➜⏱️
Cron Generator
Visually build standard 5-part cron expressions or translate them into readable schedules.
Use Tool ➜👁️
Open Graph Visualizer
Preview how your website links will look when shared on Google, Twitter, Facebook, and Discord.
Use Tool ➜⚡
Data Transfer Calculator
Estimate transfer times for files over USB, WiFi, Ethernet, and more.
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Power Cost Estimator
Estimate annual electricity costs for your PC, Server, or TV.
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Memory and Storage Throughput Visualizer
Visualize the massive speed difference between CPU cache, RAM, and storage.
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Password Generator
Generate secure, random passwords locally in your browser.
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RAM Latency Calculator
Convert DDR3/DDR4/DDR5 timings (CL, tRCD, tRP, tRAS) into true latency in nanoseconds.
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LLM VRAM Calculator
Calculate the VRAM needed to run or fine-tune any LLM at any quantization.
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LLM API Pricing Calculator
Compare API costs across major models (OpenAI, Anthropic, Google) with prompt caching.
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LLM Token Counter
Count tokens in any prompt for GPT, Claude, Gemini, and Llama with exact OpenAI tokenization.
Use Tool ➜#️⃣
Text Encoding Converter
Convert between Text, Base64, Binary, Hexadecimal, and Decimal formats.
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JSON Formatter
Validate, format, and minify JSON data with readable output and error detection.
Use Tool ➜⏰
Unix Timestamp
Convert between Unix timestamps and human-readable dates.
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Color Picker
Pick colors and convert between HEX, RGB, HSL, CMYK, and HSV formats.
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Color Sync
Compare colors across multiple devices in realtime. Pair with a code and sync solid colors, gradients, and the full spectrum.
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Contrast Checker
Check color contrast ratios for WCAG AA/AAA accessibility compliance.
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Frequency Generator
Play tones and selectable waveforms from 20 Hz to 20 kHz, stack up to four oscillators, and A/B compare two presets.
Use Tool ➜Popular guides
55" 16:9 TV dimensions
Exact width, height, and screen area of a 55-inch TV, plus the viewing distance it pairs with.
24 vs 27 inch monitor
Side-by-side size comparison of the two most-shopped desktop monitor diagonals.
27 vs 32 inch monitor
How much bigger a 32-inch panel really is than a 27-inch, and which fits your desk.
27" 16:9 monitor dimensions
The consensus single-monitor sweet spot. Full dimensions, area, and the desk width it needs.
65 inch TV viewing distance
How far to sit from a 65-inch TV for the sharpest, most comfortable picture.
1 TB over USB 3.0
How long a 1 TB transfer actually takes over USB 3.0, and why the real time beats the marketing number.
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Resources
About TechCompare
TechCompare is a collection of free, browser-based tools for working with displays, hardware, storage, color, code, and security. Most calculations run inside your browser. Live model pricing, the Ask assistant, ratings, and a few sync features make network requests. The site requires no accounts for the core tools and does not upload calculator inputs. Pick a tool from the grid above or search by name to find the right one for the question in front of you.
The site is organized into seven focused categories. Use Screens when shopping for a monitor or TV, Games for FPS and GPU questions, Data for transfer and storage tools, Hardware for power and memory timings, Security for generating passwords, Dev for everyday text and JSON utilities, and Design for color and accessibility work. Most tools take a single input and give you a clear, visual answer. This is the kind of small, practical question a search engine cannot answer directly.
TechCompare also includes an AI assistant called Ask TechCompare. Instead of browsing 28 tools manually, you can describe what you want to do in plain English (for example, "compare a 27 and 32 inch monitor" or "how much VRAM for llama 70b at q4") and the AI picks the right tool, asks follow-up questions if needed, and opens it with your values already filled in. Try it at techcompare.app/ask or click the Ask AI button on the homepage.
Frequently asked questions
Are all the tools on TechCompare free?
Yes. Every calculator, converter, and visualizer on TechCompare is free to use, with no accounts, no rate limits, and no paid tier. Tools work identically whether you visit once or a thousand times a month.
Do the tools work offline?
Most do. Once a tool's page has loaded, its core calculation runs in your browser and doesn't need the network to keep working. The LLM Pricing Calculator fetches live model data from OpenRouter with a 24-hour cache, and features such as the Ask assistant, page ratings, and color sync also use network requests.
Can I use these tools on my phone?
Yes. Every tool is responsive and works on modern mobile browsers, such as Safari on iOS, Chrome on Android, and any recent Chromium-based browser. A few visualizers render better on a larger screen, but nothing is desktop-only.
Who is TechCompare for?
Anyone who works with displays, hardware, storage, or color: developers, designers, PC builders, gamers, video editors, system administrators, and IT buyers. Each tool targets a small practical question rather than trying to be a general-purpose suite, so the answers are quick and specific.
How do I suggest a new tool?
Join the Discord linked in the site footer and drop the idea there. I read it and I build the ones that fit the site. If you can describe the question you're trying to answer, that's usually enough to start.
What is the Ask assistant and does it send my data?
The Ask anything bar sends your conversation and unit preference through a Supabase Edge Function to DeepInfra, our AI inference provider. TechCompare's server also receives a device fingerprint hash for rate limits and, when you're signed in, your Supabase access token. Those identifiers are used by our server and aren't forwarded to DeepInfra. Conversation state stays in your browser tab and isn't stored by the function after the request completes. See the AI tool assistant section of our Privacy Policy for details.