मुफ़्त ऑनलाइन टूल
268+ free online tools for PDF, images, SEO, developers, color, and productivity. Fast, browser-based, and private — no signup, no installs, no limits. Search above or browse by category below.
Total tools26810.8K total uses
Categories13Active categories
Most usedJSON Formatter4.1K uses
Recently addedExperiment RandomizerNewest tool
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text instantly in your browser.
Used 0 times•Updated never
Password Generator
Create strong random passwords with custom length, character sets, and strength feedback.
Used 0 times•Updated never
Password Strength Checker
Analyze password strength with entropy estimates, crack-time projections, and improvement tips.
Used 0 times•Updated never
RSA Decrypt
Decrypt RSA-OAEP JSON payloads with your private key, including hybrid RSA + AES-GCM ciphertext.
Used 0 times•Updated never
SSL Checker
Inspect TLS certificates for any public hostname — expiry, issuer, chain, cipher, and hostname match.
Used 0 times•Updated never
SSL Expiry Checker
Check when a website SSL certificate expires. See days remaining, expiry date, chain validity, and renewal recommendations.
Used 0 times•Updated never
DMARC Checker
Look up and parse DMARC DNS records for a domain. Review policy, reporting tags, and SPF alignment hints.
Used 0 times•Updated never
IP Address Lookup
Look up geolocation, ISP, ASN, reverse DNS, and IP format details for any public IPv4 or IPv6 address.
Used 0 times•Updated never
Reverse DNS Lookup
Look up PTR reverse DNS records for a public IP address. Resolve hostnames and verify forward DNS (FCrDNS) alignment.
Used 0 times•Updated never
DNS Propagation Checker
Check DNS record propagation across global public resolvers. Compare answers from Google, Cloudflare, Quad9, and more.
Used 0 times•Updated never
Subnet Calculator
Calculate IPv4 subnet details from CIDR notation or a subnet mask. Get network, broadcast, and host ranges instantly.
Used 0 times•Updated never
CIDR Calculator
Analyze CIDR blocks, convert prefix lengths to subnet masks, split networks, and check whether an IP belongs to a range.
Used 0 times•Updated never