151 free browser tools · nothing uploaded
Free browser tools — tax, JWT, and SEO
Search-intent tools people actually type: India income tax FY 2026-27, 24(b), LTA, 80TTA/80TTB, TDS on salary, US HSA/FSA/CDCC 2026, 28/36 DTI, refinance break-even, hourly overtime 1.5×, CSS clamp, gradients, specificity, box-shadow, meta robots, redirect maps, strip HTML, JWT decoder, and robots.txt. Every tool runs in this tab. Nothing is uploaded.
All tools A–Z · Calculators · SEO tools
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Cap Rate Calculator for Rental Property (US)
Free cap rate calculator for rental property. NOI ÷ price from rent, vacancy, and operating expenses — no mortgage. Runs in your browser. Nothing is uploaded.
Rental Property Cash Flow Calculator (US)
Free rental property cash flow calculator. Monthly cash flow, cash-on-cash, and DSCR after vacancy, expenses, and P&I. Browser tool — nothing is uploaded.
Auto Loan Refinance Calculator (US)
Free US auto loan refinance calculator. Compare leftover balance, new APR, and fees. Monthly savings and break-even in your browser — nothing is uploaded.
Free Word Counter
Free word counter. Count words, characters, sentences, and reading time in your browser. Nothing is uploaded.
Free Character Counter
Free character counter. Characters with and without spaces, UTF-8 bytes, and remaining room for X, Instagram, SMS, and meta tags. Browser tool — nothing is uploaded.
Free Keyword Density Checker
Focus-keyword density, unigram and bigram table, and reading time. Counts in this tab — nothing is uploaded.
401k Employer Match Calculator 2026
Free 401k employer match calculator for 2026: $24,500 deferral, $8,000 catch-up, $11,250 super catch-up ages 60–63. Browser tool — nothing is uploaded.
Extra Payment Mortgage Calculator (US)
Free extra payment mortgage calculator. See how extra principal shortens a US fixed-rate loan — interest and months saved in this tab. Nothing is uploaded.
Income Tax Calculator FY 2026-27 (India)
Free income tax calculator for FY 2026-27 (new regime). Budget 2026 slabs, ₹75,000 standard deduction, 87A rebate to ₹12 lakh. Browser tool — nothing is uploaded.
Free JWT Decoder
Free JWT decoder. Decode a JSON Web Token in your browser — header, payload, expiry, and claims. Nothing is uploaded.
Robots.txt Block GPTBot
Generate a robots.txt that blocks GPTBot, ChatGPT-User, Google-Extended, and other AI crawlers.
Free UUID Generator
Generate UUID v4 and RFC 9562 UUID v7 in the browser. Batch up to 100. Nothing is uploaded.
Money calculators
India FY 2026-27 tax, 24(b), LTA, 80TTA/80TTB, SSY, NSC, 80D, ESI, and stamp duty, plus US HSA/FSA/CDCC 2026, 28/36 DTI, MACRS 27.5, Roth conversions, IRMAA, PMI 78/80, HELOC, and rental 1% rule vs cap rate. Estimates only — not advice.
SEO and text tools
hreflang checker, robots.txt checker, schema markup validator, UTM generator, AI meta descriptions, plus robots.txt, meta robots, and JSON-LD. Same rule: the copy stays in this tab.
Hubs
- CalculatorsIndia tax/GST/NPS/24(b)/LTA/TDS salary, advance tax calculator, US 401k/Roth vs Traditional IRA/HSA/FSA/CDCC, refinance break-even, overtime 1.5×, 28/36 DTI.
- DeveloperJWT, UUID, SHA-256, crontab generator, cron generator, DNS lookup, SPF checker, hex/RGB, CSS clamp, gradient, box-shadow, specificity, password entropy, XML escape, HTML entities. Runs in your browser.
- ConvertJSON, CSV, XML, YAML, Excel, CSV diff, CSV to markdown. Private, no upload.
- SEOhreflang checker, robots.txt checker, schema markup validator, UTM generator, AI meta descriptions, meta robots, llms.txt, sitemap lastmod, redirect map, Open Graph, canonical URL. Runs in your browser.
- TextWord count, strip HTML tags, reading time, line wrap / fold, density, stuffing, Flesch–Kincaid, case converters, lorem, dedupe lines.
How it works
- Open a tool from search, a hub, or the A–Z index.
- Type or paste in the form. JavaScript does the math in this tab.
- Copy the result. Close the tab and the input is gone.
Frequently asked questions
- What is Free Tab Tools?
- A catalog of free browser tools — India and US calculators, JSON/CSV converters, SEO generators, and text checkers. Every tool runs in this tab. Nothing is uploaded.
- Is salary, a JWT, or a file sent to a server?
- No. Paste stays in the page. Hosting may log the URL you opened, not the contents of a textarea.
- Which tax year do the India calculators use?
- FY 2026-27 new regime unless the page says otherwise. A ₹15 lakh salary is ₹97,500 tax after the ₹75,000 standard deduction. Section 87A rebates up to ₹60,000 when taxable income is ≤ ₹12 lakh.
- Do you show ads?
- No. Ads stay off.
- How do I find a tool?
- Search below, open a hub (Calculators, Developer, Convert, SEO, Text), or use the A–Z index.