Tools, guides, and writing resources.

Choose from construction and material, math and geometry, statistics and data, time and date, grade, business, fitness, and science calculators.

Compare two lists, remove duplicate lines, and sort pasted lines locally without uploading the entered contents.

Format, validate, compare, and convert JSON locally without uploading developer data.

Invert, flip, blur, pixelate, split, or convert common images directly in the browser without uploading image contents.

Generate letters, animals, numbers, list picks, balanced teams, and original questions locally in the browser.

Create cursive, small, glitch, italic, upside-down, bold, and strikethrough Unicode text locally.

Translate International Morse code, count graphemes and words, convert case, and reverse text locally without uploading drafts.

Create Code 128, Code 39, and UPC-A barcode images locally with SVG and PNG downloads and clear identifier guidance.

Generate surnames, gamertags, band names, generic hero names, and blended couple names without uploading custom input.

Convert temperature, length, speed, and the 5K race distance with authoritative browser-local formulas.

Calculate SAT and current Enhanced ACT totals or transparent AP weighted practice composites without invented official cutoffs.

Explore, search, print, and download original 50-state maps for state names, capitals, postal abbreviations, and blank geography practice.

Generate a random verse, filter by Testament or book, read nearby context, and look up references using the public-domain World English Bible.

Estimate voltage drop, solve Ohm's law, convert watts to amps, decode resistor bands, and calculate LED, battery, energy, and simple solar results locally.

Convert one or more JPG or JPEG images into a PDF locally in your browser, with image, Letter, or A4 page sizing.

Render all or selected PDF pages as individual JPG images locally, with bounded resolution and JPEG quality controls.

Combine up to 20 PDF documents in an accessible chosen order without uploading the files.

Extract selected pages, split page ranges, or create one local PDF per page without uploading the document.

Convert one or more PNG images into a PDF locally with image, Letter, or A4 page sizing and no file upload.

Render all or selected PDF pages as individual PNG images locally with bounded resolution and no file upload.

Extract existing text-layer content from all or selected PDF pages locally and copy or download a TXT file.

Browse birthday wishes, congratulations, graduation messages, wedding wishes, and anniversary wording with practical filters and personalization guidance.

Explore the complete alphabet collection for writing, describing people, encouragement, professional wording, cards, and message inspiration.

Search suitable compliment words and original phrases by category, context, and tone, or use the curated compliment builder.

Find practical guidance for helping people, fundraising, storytelling, community support, verification, and responsible communication.

Browse established topic paths for helping people, fundraising, identity, impact, support, media, partnerships, nominations, and updates.