Boxr.Tools
Boxr.Tools is the box you open when a 2 a.m. bug needs fixing — 40+ browser-only utilities for developers, writers and creators. No signup. No upload. No tracking.
BoxrTools — Free Developer, Text & AI Tools
40+ free online tools for developers, writers, and creators. Everything runs in your browser — nothing is uploaded, nothing is tracked. Browse our curated AI tools directory for the best ChatGPT, image, and coding assistants picked for you.
Featured Tools
Editor's PicksJSON Formatter & Validator
Format, validate and beautify JSON data with syntax highlighting.
JSON to CSV Converter
Convert JSON arrays to CSV files — perfect for spreadsheets.
Case Converter
Convert text between camelCase, snake_case, kebab-case, PascalCase, UPPERCASE and more.
Regex Tester & Visualizer
Test regular expressions with real-time match highlighting.
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences or words.
Developer Tools
16 toolsJSON Formatter & Validator
Format, validate and beautify JSON data with syntax highlighting.
JSON to CSV Converter
Convert JSON arrays to CSV files — perfect for spreadsheets.
Regex Tester & Visualizer
Test regular expressions with real-time match highlighting.
JSON to YAML Converter
Convert JSON to YAML and vice-versa. Useful for config files and Kubernetes manifests.
Base64 Encoder / Decoder
Encode text or decode Base64 strings online.
URL Encoder / Query String Parser
Encode/decode URLs, parse query strings to tables, and reverse them back.
Image to Base64 Converter
Drop an image and get a Base64 data URL, raw base64, or <img>/CSS snippet.
JSON Schema Validator
Validate any JSON document against a JSON Schema (draft-07 subset).
JWT Decoder
Decode and inspect JSON Web Tokens — header, payload, signature and timestamp claims.
Unix Timestamp Converter
Convert between Unix epoch seconds/milliseconds, ISO 8601, RFC 2822 and local/UTC times.
Hash Generator
Compute MD5, SHA-1, SHA-256, SHA-384, SHA-512 hashes for text or files. All computation local.
URL Parser & Query String Builder
Parse any URL into its components and rebuild query strings — 100% offline.
SQL Formatter & Minifier
Pretty-print or compress SQL queries — supports major dialects, runs in your browser.
Cron Expression Parser
Translate a 5-field cron expression into plain language, with breakdown and next-5-fire-times preview.
JavaScript / CSS Minify & Beautify
Quick-tokenize and either compress or re-indent JavaScript / CSS source. Runs in the browser.
XLSX to Markdown
Convert Excel (.xlsx) spreadsheets to Markdown tables — multi-sheet support, optional header detection, in-browser.
Text Tools
9 toolsCase Converter
Convert text between camelCase, snake_case, kebab-case, PascalCase, UPPERCASE and more.
Markdown Table Generator
Paste CSV/TSV and get a perfectly aligned GitHub-flavored Markdown table.
Text Diff
Compare two pieces of text and highlight differences line-by-line, word-by-word, or character-by-character.
Word Counter
Count words, characters, sentences, paragraphs, syllables; estimate reading and speaking time; check Flesch readability.
Unit Converter
Convert between common units across length, weight, area, volume, time, data, and temperature.
Markdown Live Preview
Live preview of Markdown source with safe HTML output. Side-by-side editor and rendered HTML.
HTML Entity Encoder / Decoder
Encode and decode HTML entities for safe text in attributes and templates.
DOCX to Markdown
Convert Word (.docx) documents to clean Markdown — preserve headings, lists, tables, links, and inline formatting.
PPTX to Markdown
Convert PowerPoint (.pptx) slides to Markdown — each slide becomes a section with its text content.
Generators
4 toolsLorem Ipsum Generator
Generate Lorem Ipsum placeholder text by paragraphs, sentences or words.
Password Generator
Generate cryptographically-random passwords with strength scoring and entropy display.
UUID Generator
Generate UUID v1, v4, v5 and v7 identifiers in bulk.
QR Code Generator
Generate QR codes from any text or URL — instantly in your browser.
Design Tools
2 toolsImage Tools
9 toolsHEIC to JPEG / PNG Converter
Convert Apple iPhone HEIC / HEIF photos to JPEG, PNG, or WebP in your browser.
WebP to PNG / JPEG Converter
Convert WebP images to PNG or JPEG for compatibility with older tools and apps.
Image Resize & Compress
Resize, compress, and convert images (PNG / JPEG / WebP / HEIC) in your browser with no upload.
Barcode Generator
Generate EAN-13, EAN-8, UPC-A, or Code 39 barcodes from any numeric or alphanumeric string.
EXIF Metadata Viewer
Read EXIF tags (camera info, exposure, GPS, timestamps) from JPEG / TIFF / PNG / HEIC images. All local.
Favicon Generator
Generate the standard favicon / Apple Touch / Android-Chrome sizes from any image. Outputs HTML snippets + web manifest.
Meme / Sticker Overlay Generator
Add impact-font top / bottom captions to any image. Includes emoji sticker quick-buttons.
Image to PDF
Combine multiple PNG or JPEG images into a single PDF — reorder pages, pick A4 / Letter / original size.
PDF to Image
Convert every page of a PDF into PNG, JPEG, or WebP images — one image per page, all in your browser.
From the Blog
Hands-on guides, comparisons, and walkthroughs — all written by the team that builds these tools.
- Guide Aug 13, 2026
Seedance 2.5 vs Seedance 2.0 in 2026: Real Upgrade or Just Bigger Numbers?
ByteDance's Seedance 2.5 doubles clip length to 30s, lifts reference capacity to 50, and adds native 4K + 10-bit color. We compare it against Seedance 2.0 and the wider 2026 video-AI field across seven real dimensions.
media-creation 13 min read - Tutorial Jul 28, 2026
QR Code Error Correction Explained (L, M, Q, H): Which Level Should You Actually Use?
What QR code error correction levels L, M, Q, and H really mean, how they affect capacity, and how to pick the right level for print, logos, and digital use.
Guides 11 min read - Tutorial Jul 28, 2026
Password Entropy: The Real Math Behind Why Length Beats Complexity
How password entropy is actually calculated (log2 of pool^length), why adding characters beats adding symbols, what NIST SP 800-63B really says, and honest brute-force estimates.
Guides 12 min read
About BoxrTools
BoxrTools is a free, privacy-first collection of online developer and text utilities. We offer 40+ tools including JSON formatter, regex tester, case converter, UUID generator, and many more.
100% private — every tool runs entirely in your browser. Your data is never uploaded, logged, or stored on any server. No signup, no usage limits, no nonsense.