67 tools · On-device compute & transparent network inspection
All tools
Every tool in the suite, grouped by how often people reach for it.
Popular tools
Decode and inspect a JWT
Header, claims, expiry, alg=none, and optional HMAC verify with Web Crypto.
Launch toolCalculate your loan EMI
Monthly EMI, interest vs principal, and prepayment impact.
Launch toolTurn your project notes into strong resume bullets
Turn raw project notes into ATS-ready STAR bullets with metrics.
Launch toolWrite a cover letter
Human-sounding cover letters and recruiter InMails for any company.
Launch toolCompress a PDF
Raster-compress pages under 100 / 200 / 500 KB for UPSC, SSC, and portal caps.
Launch toolMake a passport or visa photo
US (2×2 in), Canada (50×70 mm), UK, Schengen, Australia (35×45 mm / DFAT), and India specs with 4×6 print sheets.
Launch toolMake a QR code
Private direct-scan QR codes for websites, Wi-Fi credentials, and UPI payments.
Launch toolGenerate a citation
APA 7, MLA 9, Chicago, Harvard, IEEE, and BibTeX from one form.
Launch toolMore utilities
Compare AI model pricing
Estimate and compare API token costs across Grok, GPT-4o, Claude, Gemini, and DeepSeek.
Launch toolSemantic Vector Similarity Studio
Local bag-of-words embeddings with cosine ranking. Nothing leaves the tab.
Launch toolTurn text into spoken audio
Turn scripts and Tamil novels into multi-speaker playback with on-device voices.
Launch toolTurn speech into text and meeting notes
Free live dictation in Tamil, English, and 25+ locales. Language and accent cues on-device. Grok PRO or BYOK for file STT, translation, actions, and email.
Launch toolCalculate a percentage
Percent of a value, percent change, reverse percentage, and percentage-point difference in one tool.
Launch toolConvert a Unix timestamp
Unix timestamp to date, with auto-detected seconds/milliseconds, UTC and local time, and ISO 8601 output.
Launch toolCalculate an IPv4 subnet
Network, broadcast, usable host range, and subnet splitting from an IP and CIDR.
Launch toolCompare two JSON documents
Structural JSON diff — added, removed, changed, and type-changed values with JSON-path locations, ignoring key order.
Launch toolTest and explain regular expressions
Test regular expressions live, view numbered and named capture groups, inspect plain-English token breakdowns, and run replacements.
Launch toolAnalyze password strength and entropy
Calculate Shannon entropy, estimate crack times across hardware tiers, detect keyboard walks and common patterns, and review NIST SP 800-63B recommendations.
Launch toolConvert between YAML, JSON, and TOML
Convert configuration files across YAML, JSON, and TOML with bidirectional formatting, type-loss warnings, and syntax error localization.
Launch toolGenerate and edit crontab schedules
Generate standard 5-field cron schedules with a guided visual builder or direct expression editor, complete with plain-English summaries and the next 8 simulated fire dates.
Launch toolCalculate your in-hand salary
FY 2026-27 new vs old regime, PF, PT, HRA, and monthly take-home.
Launch toolCalculate your gratuity
Statutory 15/26 formula with the ₹20 lakh ceiling.
Launch toolCalculate your HRA tax exemption
Metro vs non-metro HRA exemption from basic, rent, and actual HRA.
Launch toolIndia GST 2.0 Calculator
Category-aware GST 2.0 rates (0%, 5%, 18%, 40%), pre-reform comparison, HSN lookup, and forward / reverse tax splits.
Launch toolPlan your SIP investment
Monthly SIP with annual step-up, corpus, and crorepati year.
Launch toolRead your offer letter and check your salary
Paste an offer letter. Grok extracts CTC and runs the tax engine.
Launch toolPractice your "tell me about yourself" pitch
Attach a resume or a real profile. 30/60/90s PPF pitches, JD-fit score, rehearsal. Never invents a person.
Launch toolCalculate your GPA
US 4.0, weighted 5.0, and India 10.0 CGPA with reverse-solved finals.
Launch toolCreate an invoice
Line items, tax splits, and a print-ready statutory invoice.
Launch toolWrite a resignation letter
Formal resignation, notice email, and last-working-day math.
Launch toolConvert a PDF to images
Extract every page of your PDF into crisp PNG or JPEG images directly in your browser. Zero uploads.
Launch toolMerge PDFs & Images
Combine multiple PDFs and images into a single document directly in your browser. Zero uploads.
Launch toolWatermark a PDF
Add diagonal KYC and confidentiality watermarks locally. Does not encrypt or password-protect.
Launch toolCompress an image
Batch compress images under 20 / 50 / 100 KB in WebP, JPEG, or AVIF formats. Zero uploads.
Launch toolCreate kaleidoscope art
Draw hypnotic, fluid symmetric patterns with perceptual Oklab color harmonies, freeze layers, and instant export.
Launch toolPick and convert colors
Convert hex, RGB, and HSL colors, evaluate WCAG 2.1 contrast, and generate 11-step shade ladders.
Launch toolSplit a PDF into pages
Extract specific page ranges or burst documents into separate PDFs with vector clarity. Zero uploads.
Launch toolReorder or rotate PDF pages
Reorder, rotate, delete, and duplicate PDF pages directly in your browser. Zero uploads.
Launch toolAdd a letterhead to a PDF
Superimpose corporate letterheads and stationery onto document pages directly in your browser. Zero uploads.
Launch toolAdd page numbers to a PDF
Stamp customizable headers, footers, and page numbers with cover-page skip. Zero uploads.
Launch toolSign a PDF
Draw your signature and stamp it onto the first page of a document.
Launch toolBlack out private info in a PDF
Blackout Aadhaar, PAN, and salary numbers, then flatten the page.
Launch toolExtract text from a PDF
Extract embedded PDF text locally. Scanned OCR downloads language data from CDN.
Launch toolCount words and reading time
Words, sentences, reading time, speaking time, and top keywords.
Launch toolMake AI-written text sound more human
Burstiness, stock-phrase flags, and a Grok rewrite toward human cadence.
Launch toolCheck two documents for similarity
Winnowing fingerprints and cosine overlap. Two documents, zero uploads.
Launch toolDeveloper tools
AI System Prompt Studio
Engineer, audit, and auto-architect developer-grade system prompts with Grok.
Launch toolRAG Chunking & Retrieval Studio
Simulate chunking strategies, sliding overlaps, retrieval ranking, and embedding cost.
Launch toolPractice coding problems online
In-browser JavaScript judge with hidden tests for campus and DSA drills.
Launch toolExplain a cron schedule in plain English
Explain 5-field cron in English and list upcoming fire times.
Launch toolCompare two pieces of text
Side-by-side line diff with unified patch export.
Launch toolTurn JSON into TypeScript, Python, or Go types
Infer TypeScript, Pydantic, and Go types from a JSON sample.
Launch toolEncode or decode Base64, hex, and URLs
Live Base64, hex, and URL encoding with UTF-8 byte counts.
Launch toolGenerate UUIDs and API keys
Bulk UUID v4 / v7, NanoID, and API keys from Web Crypto.
Launch toolConvert between CSV, JSON, and tables
Convert CSV, TSV, JSON, Markdown tables, and SQL INSERTs with delimiter sniffing.
Launch toolPreview how a link looks when shared
Audit og:*, Twitter cards, and character budgets from a URL or pasted HTML.
Launch toolTrace a redirect chain
Trace 301/302/307/308 chains, protocol upgrades, and hop latency.
Launch toolScan a site's security headers
Score CSP, HSTS, X-Frame-Options, and Permissions-Policy from A+ to F.
Launch toolDNS & MX Record Lookup
Resolve A, AAAA, MX, TXT, CNAME, NS, SOA, and CAA with SPF/DMARC lint.
Launch toolLook up an IP address
Client IP, reverse PTR, ASN, and geo coordinates for any public address.
Launch toolCheck a site's robots.txt and sitemap
Parse robots.txt, test paths, and expand XML sitemap URL lists.
Launch toolCheck if a page can be indexed
Check noindex, nofollow, canonical consistency, and Googlebot hints.
Launch toolFind out what a website is built with
Fingerprint CMS, frameworks, CDNs, and analytics from HTML and headers.
Launch toolCheck keyword density in your text
1/2/3-gram density, stop-word filter, and Flesch / Gunning Fog scores.
Launch toolAudit a site for SEO and AI search readiness
One-shot crawlability, schema, and AI-citation readiness audit from a URL.
Launch toolCrawl a website and list its pages
Spider a domain, extract titles and H1s, and export a page dataset.
Launch toolExtract structured data from any webpage
Pull JSON-LD / microdata and synthesize TypeScript and Pydantic contracts.
Launch tool