22 free tools · no sign-up
Free SEO and digital marketing tools
Audit any website, write better meta tags and schema, plan ad budgets in rupees and dollars, tag your links and size your images. Built by the Sigma Nepal team for businesses in Nepal, and free for everyone.
Website audit
SEO tools
Google SERP preview
See how your title and meta description look in Google, with length checks.
Meta tag generator
Title, description, canonical, Open Graph and Twitter tags, ready to paste.
Schema markup generator
JSON-LD for local business, organization, FAQ and breadcrumbs. Copy and paste.
Robots.txt generator
Build a safe robots.txt with your sitemap, and choose which AI crawlers to allow.
Keyword density checker
Paste your text. See top words and phrases, and whether a keyword is overused.
Word & character counter
Words, characters, sentences, reading time and readability for any text.
Heading structure checker
Paste a page's HTML. See its H1–H6 outline and the heading mistakes to fix.
Ads & marketing calculators
Facebook ads budget calculator
Turn a monthly NPR budget into USD, daily spend and rough reach, clicks and leads.
Google Ads budget calculator
From budget and CPC to clicks, leads and cost per lead, in NPR and USD.
ROI & ROAS calculator
Is your ad spend paying off? ROAS, ROI, profit and break-even ROAS.
Engagement rate calculator
Engagement rate by followers or reach for Facebook, Instagram and TikTok.
CPM, CPC & CPA calculator
Enter any three numbers and get the rest: CPM, CPC, CTR, CPA and conversion rate.
Content & social media
UTM link builder
Tag links for Facebook, Instagram, WhatsApp and email so GA4 shows what worked.
WhatsApp link generator
Create a wa.me click-to-chat link with a pre-filled message, plus a QR code.
Social media image sizes
Current image and video sizes for Facebook, Instagram, TikTok, YouTube and LinkedIn.
Caption & hashtag checker
Check caption length, hashtags and the 'see more' cut-off for each platform.
Business planning
Website cost calculator
Pick the type, pages and features. Get an NPR estimate and yearly running costs.
SEO cost estimator
Estimate a sensible monthly SEO budget in Nepal for your market and goals.
Digital marketing budget planner
Split a monthly budget across ads, SEO, content and social, by business type.
Website speed loss calculator
See roughly how many enquiries and rupees a slow website may be costing you.
Questions about our free tools
Are these tools really free?
Yes. No sign-up, no email required and no limits on our side. The website audit uses Google's PageSpeed Insights API, which Google limits if too many people use it at once.
Is my data stored anywhere?
No. The calculators and generators run in your browser. The website audit sends only the URL you enter to Google's PageSpeed service.
Are the calculator results accurate?
They're planning estimates based on the numbers you enter and typical Nepali market rates. Use them to plan, then replace the assumptions with your real results.
Can Sigma Nepal do this work for me?
Yes. If a tool shows problems you'd rather not fix yourself, request a free SEO audit or a quote and a person on our team will reply within one working day.
Rather have an expert look?
Send us your website and goals. A person on our team replies within one working day with what we'd fix first.