ToolPetal
Free browser-only tools. Each page runs in your tab. No accounts, no uploads, no backend.
Built for one-off jobs without signing up. The catalog will keep growing. Not financial, tax, or legal advice.
SEO
Structured data, snippets, crawlers, and campaign URLs.
SEO
FAQ schema generator
Turn Q&A pairs into FAQPage JSON-LD you can paste into a page.
SEO
JSON-LD schema generator
Build FAQ, Organization, Article, or BreadcrumbList markup.
SEO
Meta description generator
Write a snippet with a live 150–160 character counter.
SEO
Robots.txt generator
Allow all, or block common AI crawlers, with a live preview.
SEO
Slug generator
Unicode-safe URL slugs from titles and headings.
SEO
UTM generator
Add source, medium, campaign, term, and content to a URL.
SEO
Open Graph generator
Free Open Graph and Twitter Card meta tags. Live counters, HTML you can paste.
SEO
Breadcrumb schema generator
Turn a trail of names and URLs into BreadcrumbList JSON-LD.
SEO
Schema markup validator
JSON-LD / schema markup validator for FAQ and more. Browser-only checker.
SEO
llms.txt generator
Build an llms.txt file from a site name, summary, and optional links.
Developer
Identifiers, cron, and JSON Schema tools that run locally.
Developer
UUID v7 generator
Time-ordered UUIDs (RFC 9562-style), plus optional v4.
Developer
ULID generator
Crockford Base32 IDs with a timestamp, they sort by time like UUID v7.
Developer
NanoID generator
Free NanoID generator. URL-safe IDs, size 21 default, optional alphabet.
Developer
JSON Schema validator
Check required, type, and properties against a JSON instance.
Developer
JSON Schema generator
Infer a draft-07-ish schema from a JSON sample.
Developer
Cron expression generator
Build a 5-field Unix cron with a live plain-language explanation.
Developer
Camel case converter
camelCase, snake_case, kebab-case, PascalCase, and CONSTANT_CASE on one page.
Developer
JWT encoder
Build a compact HS256 JWT in the browser. The secret stays on this device.
Developer
PEM to JWK converter
Import a SPKI or PKCS8 PEM and export a JWK with Web Crypto.
Developer
PKCE generator
Mint a code_verifier and S256 code_challenge (RFC 7636) locally.
Developer
Base64 encoder / decoder
UTF-8 Base64 encode and decode. Standard or URL-safe alphabet.
Developer
URL encoder / decoder
Percent-encode query values or full URLs. Decode percent sequences locally.
Developer
Unix timestamp converter
Epoch seconds or milliseconds to UTC and local time, and back.
Developer
Hash generator
SHA-256, SHA-1, or MD5 digests in hex or Base64. Local only.
Developer
Case converter
UPPERCASE, lowercase, Title Case, or Sentence case. Local only.
Developer
Word counter
Words, characters, sentences, paragraphs, and reading time. Local only.
Developer
Duplicate line checker
Remove duplicate lines, keep unique lines in order. Local only.
Developer
Sort lines
A–Z, Z–A, reverse, or natural sort. Local only.
Converters
Paste data in, copy or download data out.
Converters
YAML to JSON converter
Convert YAML to JSON and JSON back to YAML in the browser.
Converters
JSON to CSV converter
Turn a JSON array of objects into a downloadable CSV file.
Converters
XML to JSON converter
Turn XML into JSON and JSON back into XML in the browser.
Converters
WebP to PNG converter
Decode WebP in the browser and download PNG. Batch, no upload.
Converters
SVG to PNG converter
Paste SVG or pick a file, set size, download a PNG.
Converters
CSV to Excel converter
Comma or EU semicolon CSV to .xlsx, leading zeros kept.
Converters
Markdown to HTML converter
Paste Markdown, copy HTML, optional live preview.
Finance
India salary, tax, and cash-flow math that stays in the browser. FY 2026-27 estimates, not tax advice.
Finance
Days between dates calculator
Exclusive, inclusive, or weekday-only counts between two calendar dates.
Finance
Percentage calculator
X% of Y, reverse percent, change A to B, tip and discount.
Finance
FD calculator
Fixed deposit maturity and interest from amount, rate, tenure, and compounding.
Finance
SIP calculator
Maturity value from monthly SIP, expected return, and tenure.
Finance
EMI calculator
Monthly EMI from loan amount, rate, and tenure (years or months).
Finance
GST calculator
Add or remove India GST. CGST/SGST or IGST, GST 2.0 slabs.
Finance
Retirement corpus calculator
Corpus needed at retirement from spend, inflation, years, and return.
Finance
Compound interest calculator
Future value from principal, rate, frequency, years, and contributions.
Finance
XIRR calculator
Free XIRR calculator for irregular dated cash flows. Annualized IRR.
Finance
Old vs new tax regime calculator
FY 2026-27 comparison: which regime is lower on the same income.
Finance
HRA exemption calculator
Minimum of the three statutory tests, plus taxable HRA.
Finance
Gratuity calculator
15/26 formula, covered vs non-covered, editable exemption cap.
Finance
CTC to in hand calculator
Monthly take-home from CTC using new-regime tax.
Finance
TDS calculator
Salary, 194J, 194C, 194I, 194A. Editable rates and net payable.