SimpleWebUtils Practical Tools for Everyday Files and Data Processed in Your Browser
Format data, clean text, convert documents and encodings, generate assets, and inspect security details with focused browser tools.
Each workflow states its limits and gives you a result you can verify.
What SimpleWebUtils Helps You Finish
58 Complete Workflows
Use 58 maintained workflows for data conversion, text cleanup, PDFs, encoding, formatting, images, and security review.
Browser-Local Processing
During normal use, text and selected files are processed in your browser instead of being sent to a SimpleWebUtils conversion server.
Clear Operating Boundaries
Each workflow documents supported input, practical limits, expected output, and the checks that still require your judgment.
Practical Workflow Guides
Step-by-step guides connect common data, document, text, encoding, and security tasks to the right tools.
Browser tools designed for an end-to-end check
SimpleWebUtils organizes narrow utilities into 58 complete workflows. Each tool states its input limits, supported formats, failure reasons, and checks to perform on the result. Text and selected files are processed in the browser during normal use, while device memory and browser capabilities still set practical limits. Compare important output with the source before copying or sharing it, and confirm security, authentication, and compatibility decisions with the authoritative system involved.
Popular Browser Tools
Start with representative tools for data, documents, text, encoding, and security work.
JSON Formatter | Beautify or Minify Exact JSON Text
Format and minify API JSON locally while preserving source keys, numeric forms, and exact syntax diagnostics.
PDF Merge Online | Combine PDF Files Locally with No Upload
Combine ordered PDF files locally and verify the final document package before sharing.
Base64 Encoder and Decoder | UTF-8, Base64URL, and Data URIs
Encode bounded UTF-8 as standard Base64 or Base64URL and strictly decode canonical payloads or data URIs while preserving non-text bytes for exact local download.
QR Code Generator | Exact PNG and SVG with Scan-Safe Settings
Generate an exact static QR payload locally as PNG or SVG with explicit L/M/Q/H recovery, bounded size and quiet-zone controls, contrast enforcement, and scan-test guidance.
Image to PDF | Convert JPG and PNG Images to PDF
Turn ordered JPG and PNG files into a local PDF with practical page and margin controls.
CSV to JSON and JSON to CSV Converter | Local and Loss-Aware
Convert CSV and JSON locally with quoted multiline parsing, loss-aware type controls, union columns, and spreadsheet formula protection.
Password Strength Checker | Local Pattern-Based Estimate
Estimate password guessability locally with on-demand zxcvbn-ts common-password, dictionary, date, repeat, sequence, and keyboard-pattern analysis, Unicode length checkpoints, no breach lookup, and no character-composition score.
URL Encoder and Decoder | Exact Percent Encoding and Plus Rules
Encode or decode one exact bounded value locally with explicit RFC 3986 component, full URL, or form rules, one-pass decoding, UTF-8 validation, and plus-sign and nested-layer warnings.
Text Cleanup Workbench | Clean Lists, Logs, and Paragraphs
Clean bounded lists, logs, delimited rows, and paragraphs locally through a repeatable pipeline of line numbering, line-ending normalization, quote-aware column extraction, adjacent deduplication, safe RE2 filtering, indentation, merging, quoting, sorting, splitting, whitespace cleanup, and grapheme-aware wrapping.
Encoding Workbench | Text, Entity, Message, and Image Base64 Tools
Run 18 bounded encoding tasks locally with explicit alphabets, padding, byte order, entity and legacy-format rules, image signature checks, and inverse round-trip verification.
Practical Workflow Guides
Review a common scenario, likely mistakes, and final checks before opening the matching tool.
View all guidesFormat JSON for API debugging
Isolate, redact, format, and validate an API JSON body without rewriting number text or hiding duplicate keys, then check its schema separately.
Read guideDecode a JWT safely before debugging authentication
Learn how to inspect JWT headers and payload claims without treating decoded tokens as verified or sharing secrets by accident.
Read guideDecode a Base64 API payload without corrupting bytes
Identify Base64 versus Base64URL, decode one API field strictly, distinguish UTF-8 text from binary, and redact the result before sharing it.
Read guideConvert CSV to JSON for spreadsheet data cleanup
Convert spreadsheet CSV exports to JSON without losing quoted cells, multiline text, leading-zero IDs, duplicate headers, or empty values.
Read guideConvert JSON and YAML configuration files safely
Convert JSON and YAML configuration files while checking duplicate keys, number precision, comments, anchors, aliases, multi-document streams, and destination schemas.
Read guidePreview Markdown safely before publishing a README or article
Review Markdown structure, links, images, code, math, raw HTML, and the sanitized output before moving a README, technical note, or article into its publishing system.
Read guideMore Useful Tools
Open a maintained workflow, review its input limits, and check the result before using it elsewhere.
Base64 Encoder and Decoder | UTF-8, Base64URL, and Data URIs
Strictly encode UTF-8 and decode Base64, Base64URL, data URIs, and binary byte output locally.
QR Code Generator | Exact PNG and SVG with Scan-Safe Settings
Encode exact text or a prepared URL, Wi-Fi, email, phone, SMS, or vCard payload as PNG or SVG.
UUID v4 Generator | RFC 9562 Batch GUIDs with Web Crypto
Generate 1-100 RFC 9562 UUID v4 values locally from Web Crypto with exact format options.
Finish the Task in Your Browser
Choose the workflow that matches your input, review its limits, and verify the result before you reuse or share it.
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