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Full source code for the JWT Decoder: a JWT inspector that decodes the header and payload, explains registered claims, shows exp/iat/nbf as dates and verifies HS256/384/512 signatures with WebCrypto. Instant download after purchase.
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Full source code for the Inventory and Stock Sheet: a browser-only inventory sheet with SKUs, a stock movement log, low-stock rules, valuation, barcode scanner input, CSV import and export and a PDF stock sheet. Instant download after purchase.
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Full source code for the India Income Tax Calculator FY 2026-27: an Indian income tax calculator for FY 2026-27 that compares the old and new regimes with slabs, standard deduction, 87A rebate, marginal relief, surcharge and cess. Instant download after purchase.
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Full source code for the Image Watermark Tool: adds text or logo watermarks to batches of images with nine-point positioning, tiling, rotation and opacity, then zips the results. Instant download after purchase.
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Full source code for the Image Resizer and Cropper: a canvas-based image editor with a draggable crop box, preset ratios, exact output sizes, rotate and flip, and PNG, JPG or WebP export. Instant download after purchase.
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Full source code for the Image to PDF and PDF to Image Converter: converts images into a PDF with page size, orientation, margin and fit controls, and renders PDF pages to PNG or JPG at a chosen DPI with zip download. Instant download after purchase.
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Full source code for the Image Format Converter: converts batches of images between PNG, JPG, WebP and AVIF in the browser and detects honestly whether the browser can encode AVIF. Instant download after purchase.
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Full source code for the Image Compressor: a batch image compressor that re-encodes JPG, PNG and WebP on a canvas with a quality slider, optional size limit, before/after sizes and zip download. Instant download after purchase.
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Full source code for the HTML Entity Encoder and Decoder: an HTML entity encoder and decoder with named, decimal and hex styles and a table of common entities. Instant download after purchase.
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Full source code for the Heading and Alt Text Checker: a page checker that extracts the H1 to H6 outline, images with missing or weak alt text and links with empty or vague text, with CSV export. Instant download after purchase.
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Full source code for the Hash Generator: a hash and HMAC generator for text or files: MD5 (built in), SHA-1, SHA-256, SHA-384 and SHA-512 through WebCrypto. Instant download after purchase.
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Full source code for the Habit and Goal Tracker: a browser-only habit and goal tracker with daily and weekly habits, current and best streaks, 26-week SVG heatmaps, goals with milestones and Notification API reminders. Instant download after purchase.
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Full source code for the Gantt Chart and Timeline Maker: a client-side Gantt chart editor with finish-to-start dependencies, milestones, groups, progress, drag-to-move and resize bars, and PNG, PDF, CSV and JSON export. Instant download after purchase.
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Full source code for the Freelance Hourly Rate Calculator: a calculator that works backwards from target take-home income, expenses, tax, time off and non-billable time to an hourly rate, day rate and project quote. Instant download after purchase.
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Full source code for the Floor Plan Sketcher: an SVG floor plan sketcher with snapped rectangle and polygon rooms, doors, windows, a furniture library, live wall lengths and areas, undo/redo and PNG, PDF and JSON export. Instant download after purchase.
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Full source code for the Fancy Text Generator: a Unicode text styler with 24 styles for social bios and a clear screen-reader accessibility warning. Instant download after purchase.
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Full source code for the Expense and Budget Tracker: a private expense and budget tracker with monthly budgets, recurring entries, multi-currency totals from manual rates, SVG charts and CSV and JSON import and export. Instant download after purchase.
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Full source code for the Event RSVP Page Maker: a hosted event page with an RSVP form for guest counts and dietary notes, a private guest list with CSV and a standards-compliant .ics download. Instant download after purchase.
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Full source code for the Emoji and Special Character Picker: an emoji and symbol picker with search, categories, recent picks and copy as character, HTML entity or Unicode code. Data bundled compactly from emojibase-data. Instant download after purchase.
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Full source code for the DNS, SSL and Security Header Checker: a domain checker that runs DNS lookups, reads the TLS certificate chain and grades HTTP security headers, all from one API call. Instant download after purchase.
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Full source code for the Discount and Sale Price Calculator: a sale price calculator for single, stacked and buy-X-get-Y discounts, with reverse calculation back to the original price. Instant download after purchase.
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Full source code for the Device Mockup Generator: places screenshots into flat canvas-drawn phone, tablet, laptop and browser frames, or beautifies them with padding, radius and shadow. Instant download after purchase.
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Full source code for the Delivery Note and Packing Slip Generator: a delivery note and packing slip maker with ordered, delivered and backorder quantities and signature lines. Instant download after purchase.
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Full source code for the Currency Converter: a currency converter backed by a small Next.js route that caches European Central Bank reference rates for 12 hours, with an offline-capable client. Instant download after purchase.
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