Stax

…

Tools
Free forever · No login · No uploads

Free Online Tools
for Everyone

Format, convert, calculate — all in your browser. No installs. No accounts.

Browse all 310+ toolsRead the blog
0+Free tools
0Categories
0Languages
0%Client-side
</>Developer₹Finance🤖AI Writing📱Social Media💬WhatsApp📄PDF🖼️Image🩺Health
Stax Tools — browser-based developer, finance and PDF tools
100% Client-side
🔒 No signup required
JSON FormatterPDF CompressorBase64 EncoderRegex TesterUUID GeneratorHash GeneratorJWT DecoderURL EncoderColor PickerDiff CheckerMarkdown EditorSQL FormatterImage ResizerQR Code GeneratorTimestamp ConverterPassword GeneratorCSS Gradient GeneratorFavicon GeneratorJSON FormatterPDF CompressorBase64 EncoderRegex TesterUUID GeneratorHash GeneratorJWT DecoderURL EncoderColor PickerDiff CheckerMarkdown EditorSQL FormatterImage ResizerQR Code GeneratorTimestamp ConverterPassword GeneratorCSS Gradient GeneratorFavicon Generator
EMI CalculatorSIP CalculatorBMI CalculatorIP Subnet CalculatorLorem Ipsum GeneratorText Case ConverterWord CounterInvoice GeneratorGST CalculatorImage CompressorBarcode GeneratorPPF CalculatorXIRR CalculatorPDF MergerPDF SplitterCron Expression BuilderRegex Cheat SheetEMI CalculatorSIP CalculatorBMI CalculatorIP Subnet CalculatorLorem Ipsum GeneratorText Case ConverterWord CounterInvoice GeneratorGST CalculatorImage CompressorBarcode GeneratorPPF CalculatorXIRR CalculatorPDF MergerPDF SplitterCron Expression BuilderRegex Cheat Sheet

How it works

Every Stax tool follows the same pattern — open, use, done.

01
Pick a tool

Pick a tool

Browse 310+ free tools by category or search by name. No account, no paywall.

02
Works in your browser

Works in your browser

Every tool runs 100% client-side. Your files and data never leave your device.

03
Done instantly

Done instantly

Results in seconds. Copy, download, or share — no waiting, no email, no limits.

Why Stax?

Built for speed, privacy, and everyone — no exceptions.

🔒

Privacy by design

Tool logic runs in your browser. Your files, data, and inputs never reach our servers.

Files stay on your device
Zero server uploads
Verifiable via DevTools → Network
⚡

Instant results

No server round-trip. Processing happens locally — output is immediate.

~0ms latency
🌍

7 languages

Pages are translated tool by tool into EN, HI, ES, FR, AR, JA, and TH.

ENHIESFRARJATH
📱

Works everywhere

Fully responsive on desktop, tablet, and mobile. No app install required.

No app install needed
🎯

310+ tools, one place

Developer, finance, PDF, image, health, engineering — stop Googling a new tool for every task.

Browse all tools

Browse

All Tools

Browse by category or search above.

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Developer Tools

72 tools

JSON, regex, encoding, hashing, color, CSS, and more

View all 72 Developer tools →
₹

Finance Calculators

55 tools

EMI, SIP, tax, salary, GST, PPF, NPS, and more

View all 55 Finance tools →
🎬

Video & Audio Tools

56 tools

Compress, convert, and trim video, make GIFs, extract audio — no upload

View all 56 Video & Audio tools →

From the Blog

Tips, guides and updates from the Stax team.

View all
Does an Online Tool Upload Your File? A 2-Minute Test
privacysecurity

Does an Online Tool Upload Your File? A 2-Minute Test

Does an online tool upload your file? Use the browser's Network tab and an offline test to check any video, PDF or image tool in two minutes.

·6 min read
Resistor Color Code Chart: How to Read 4, 5 and 6 Bands
electronicstutorial

Resistor Color Code Chart: How to Read 4, 5 and 6 Bands

Resistor color code chart with worked examples: read 4, 5 and 6-band resistors, find which end to start from, and decode 8.2k vs 82k correctly.

·9 min read
RBI Repo Rate Hike: What It Means for EMIs and Prices
financeindia

RBI Repo Rate Hike: What It Means for EMIs and Prices

The RBI repo rate hike to 5.50% lifts floating-loan EMIs first and cools prices later. See the rupee impact on EMIs, FDs and your monthly budget.

·14 min read
Missed the ITR Deadline? What a Belated Return Costs
financeindia

Missed the ITR Deadline? What a Belated Return Costs

Missed July 31? You can still file a belated ITR for AY2026-27 until December 31, 2026. The late fee, interest, old-regime lock-out and the exact steps to file.

·8 min read

Frequently Asked Questions

Everything you need to know about Stax Tools.

Yes. Every tool on Stax is completely free to use with no hidden fees, trials, or paywalls. There is no premium tier — all features are available to everyone.

No account or sign-up is required. Just open any tool and start using it immediately. Stax is designed to be friction-free.

Yes. All processing happens entirely in your browser using JavaScript — your files, text, and inputs are never uploaded to any server. Stax does not log or store your input data.

Stax Tools works in all modern browsers including Chrome, Firefox, Safari, Edge, and Brave. No plugins or extensions are required.

Yes. All Stax Tools are fully responsive and work on smartphones and tablets. Most tools are optimized for touch input as well as desktop.

Stax covers developer tools (JSON formatter, regex tester, base64 encoder), PDF tools (compressor, merger, splitter), image tools (resizer, converter, color picker), finance calculators (EMI, SIP, BMI), text & writing tools, engineering calculators, and more.

Stax Tools is available in 7 languages: English, Hindi, Spanish, French, Arabic, Japanese, and Thai. Translation is done tool by tool, so some pages and tool screens still appear in English.

New tools are added regularly. You can follow updates via the blog at stax.tools/blog or subscribe to the RSS feed at stax.tools/feed.xml.