Tools
Free online tools
Use fast browser tools for text, code, files, SEO, security, and everyday tasks. No account required. Search by name or keyword, filter by category, and load more as the catalog grows.
1311 tools across 10 categories.
Showing 24 of 1311 tools.
Credit Card Payoff Calculator
Payoff time, total interest, and minimum-only vs fixed-payment comparison for one card.
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PDFMarkdown to PDF Converter
Turn .md content into a styled multi-page PDF with headings, lists, code blocks, and inline formatting.
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DeveloperAccept-Language Header Parser
Parse, build, and run RFC 4647 lookup matching against an Accept-Language header.
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PDFPDF Splitter
Split one PDF into many files: every page, fixed chunks, or custom ranges.
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PDFText to PDF Converter
Turn pasted text or a .txt file into a multi-page PDF with font, margin, and alignment controls.
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GeneratorInvoice Generator
Build a printable invoice with line items, tax, discount, and Save as PDF.
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ImageCompress Image to Size
Resize and recompress images to a target KB or MB budget without uploading.
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PDFPDF Merger
Combine multiple PDFs into one, in the browser, with no upload or signup.
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CalculatorFIRE Number Calculator
FIRE number, time to FI, and Coast FIRE in one calculator.
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GeneratorGuitar Tuner
Mic-based chromatic tuner plus reference tones for guitar, bass, ukulele, mandolin, and violin.
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TextOnline Notepad
Browser notepad with autosave, multiple pages, live counts, and .txt download.
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CalculatorScientific Calculator
Trig, log, exp, sqrt, factorial, memory, and history in your browser.
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GeneratorBingo Card Generator
Free printable bingo cards. Classic numbers or custom words on 3x3, 4x4, and 5x5 grids.
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DeveloperJSON Repair
Auto-fix broken JSON: trailing commas, single quotes, unquoted keys, comments, smart quotes, and NDJSON.
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GeneratorQR Code Decoder
Read QR codes from images and parse URL, WiFi, vCard, email, SMS, and OTP payloads.
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GeneratorColor Harmony Generator
Build complementary, triadic, tetradic, analogous, and monochromatic palettes.
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GeneratorColor Picker
Visual color picker with eyedropper, native input, and live HEX, RGB, HSL, HSV, HWB, OKLCH, and Tailwind output.
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DeveloperGPT Token Counter
Estimate GPT tokens, context window usage, and OpenAI API cost.
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ImageImage Metadata Remover
Strip EXIF, GPS, XMP, IPTC, and color profiles from JPG, PNG, and WebP losslessly.
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CalculatorMortgage Calculator
Full PITI mortgage payment with PMI, HOA, extra principal, and amortization schedule.
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DeveloperURL Cleaner
Remove tracking parameters from one URL or a batch of URLs at once.
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GeneratorCSS Flexbox Generator
Visual CSS flexbox builder with live preview and copy-ready code.
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GeneratorEmail Signature Generator
Design an HTML email signature with photo, social links, and one-click copy for Gmail and Outlook.
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PDFImage to PDF Converter
Combine images into a multi-page PDF locally with reorder, page size, and fit controls.
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