Développeurs
19 outils dans cette catégorie
Favorites
Nothing pinned yet
Star tools you love so they're one tap away.
Recently used
Your trail starts here
Tools you open will appear here so you can jump back fast.
Browse by category
86+ outils · entièrement dans votre navigateurOutils en ligne gratuits,
Outils en ligne gratuits,
conçus pour la rapidité.
Une collection grandissante d'utilitaires rapides, épurés et sans détour pour les développeurs, les rédacteurs et le travail quotidien. Pas d'inscription, pas de publicité, vos données ne quittent pas votre navigateur.
- Outils
- 86+
- Catégories
- 10
- Coût
- Gratuit
Tool of the dayText
Emoji Remover
Remove emojis from text while keeping letters, numbers, punctuation, and readable spacing.
Try it nowNew tool tomorrow
Explorer par intention
Parcourir par catégorie
Chaque catégorie se concentre sur un type précis de tâche quotidienne.
Maths
3 outils dans cette catégorie
Texte
25 outils dans cette catégorie
Design
2 outils dans cette catégorie
Encodage
11 outils dans cette catégorie
Sécurité
10 outils dans cette catégorie
Marketing
3 outils dans cette catégorie
Données
6 outils dans cette catégorie
Finance
4 outils dans cette catégorie
Cloud
3 outils dans cette catégorie
Tous les outils
Choisissez un outil et commencez — les résultats sont instantanés.
Développeurs
Timestamp Converter
Convert Unix timestamps to human-readable dates and back, in seconds or milliseconds. Live epoch clock, ISO 8601, UTC, and any timezone — free and fully in-browser.
Ouvrir l'outil
Développeurs
Time Zone Converter
Compare up to 4 time zones side-by-side with a live 24-hour grid. Search by city, country, IANA, or abbreviation (GMT, NPT, IST, EST). Star favorites, pick a meeting time that works everywhere.
Ouvrir l'outil
Maths
Nepali Date Converter (BS ↔ AD)
Convert dates between Nepali Bikram Sambat (BS) and English Gregorian (AD) instantly — with Nepali month names, Nepali digits, a live BS calendar, and today highlighted for Nepalis at home and abroad.
Ouvrir l'outil
Texte
Nepali Font Converter (Preeti ↔ Unicode, Roman → Nepali)
Convert Preeti to Unicode, Unicode to Preeti, and type Romanized English phonetically into Nepali Unicode — instantly, privately in your browser. Built for writers, editors, government staff, and anyone migrating old Preeti documents to modern Unicode.
Ouvrir l'outil
Développeurs
Number Base Converter
Convert binary, decimal, octal, and hexadecimal values with grouped formatting and optional bit-length padding.
Ouvrir l'outil
Design
Color Converter
Convert HEX, RGB, and HSL color formats instantly with a visual picker, palette suggestions, and copyable outputs.
Ouvrir l'outil
Design
Color Picker
Interactive color picker with eyedropper support, image upload and URL sampling, saturation/brightness canvas, hue and opacity sliders, HEX / RGB / RGBA / HSL / CMYK output, CSS named-color lookup, nearest-name matching, and saved swatches.
Ouvrir l'outil
Maths
Unit Converter
Convert units across length, mass, temperature, speed, area, and volume with category switching and recent history.
Ouvrir l'outil
Maths
CGPA to Percentage Converter
Convert CGPA to percentage and percentage to CGPA on 10-point (CBSE / Indian universities) and 4-point (US GPA) scales — designed for Indian and Nepali students.
Ouvrir l'outil
Développeurs
JSON Formatter
Format and beautify JSON with proper indentation.
Ouvrir l'outil
Encodage
Base64 Encode
Encode plain text into Base64.
Ouvrir l'outil
Encodage
Base64 Decode
Decode Base64 back to readable text.
Ouvrir l'outil
Encodage
Base64 to Image
Decode Base64 image input and preview or download the result instantly.
Ouvrir l'outil
Encodage
Image to Base64
Convert uploaded images to a Base64 Data URL string in your browser.
Ouvrir l'outil
Texte
Word Counter
Count words, characters, and lines in text.
Ouvrir l'outil
Texte
Emoji Remover
Remove emojis from text while keeping letters, numbers, punctuation, and readable spacing.
Ouvrir l'outil
Sécurité
Email Validator
Instantly check if an email address is valid with normalized output and clear error messages.
Ouvrir l'outil
Sécurité
Email Extractor
Extract unique email addresses from text, logs, and messy documents in one click.
Ouvrir l'outil
Développeurs
IDN Punycode Converter
Convert Unicode domains to punycode and decode punycode back to internationalized domain names.
Ouvrir l'outil
Encodage
URL Encode
Percent-encode text so it can be safely used inside a URL.
Ouvrir l'outil
Encodage
URL Decode
Decode a percent-encoded URL string back to readable text.
Ouvrir l'outil
Texte
Slug Generator
Turn any string into a clean, URL-safe slug.
Ouvrir l'outil
Texte
Case Converter
Convert text between lower, UPPER, Title, camelCase, snake_case, and more.
Ouvrir l'outil
Sécurité
Password Generator
Free strong password generator and passphrase generator. Create 8, 12, 15, 16, 20, or 32 character random passwords, or memorable 3–7 word passphrases, with a live strength meter, entropy in bits, and crack-time estimate. Everything runs locally in your browser.
Ouvrir l'outil
Sécurité
htpasswd Generator
Generate .htpasswd credentials for Apache and Nginx Basic Auth. Create APR1-MD5 or SHA-1 entries, build multi-user files, and follow practical setup steps to protect folders with .htaccess or server config.
Ouvrir l'outil
Développeurs
UUID Generator
Generate random v4 UUIDs instantly — single or bulk.
Ouvrir l'outil
Développeurs
Random Number Generator
Generate random numbers with custom min/max range, decimal precision, and batch output for analytics, testing, and simulations.
Ouvrir l'outil
Développeurs
Random String Generator
Create random strings with configurable character sets, optional prefix/suffix, and exclusion of ambiguous characters for safe IDs.
Ouvrir l'outil
Texte
Lorem Ipsum Generator
Generate placeholder text in words, sentences, or paragraphs.
Ouvrir l'outil
Sécurité
Hash Generator
Compute MD5, SHA-1, or SHA-256 hashes of any text.
Ouvrir l'outil
Développeurs
JWT Decoder
Decode and inspect JSON Web Tokens without verification.
Ouvrir l'outil
Sécurité
JWT Encoder
Create JWT tokens with custom header and payload JSON, optional HMAC signing, and expiration controls for secure API testing.
Ouvrir l'outil
Sécurité
Hash Compare Tool
Compare two hashes with exact matching, timing-safe comparison, and similarity detection to catch subtle differences quickly.
Ouvrir l'outil
Sécurité
HMAC Generator
Generate HMAC signatures using SHA-256, SHA-384, or SHA-512 with an API testing mode for method, path, timestamp, and body signing.
Ouvrir l'outil
Encodage
HTML Entity Encode
Encode special characters into HTML entities.
Ouvrir l'outil
Encodage
HTML Entity Decode
Decode HTML entities back to readable characters.
Ouvrir l'outil
Encodage
Binary Converter
Convert plain text to binary and decode binary bytes back to text.
Ouvrir l'outil
Développeurs
Regex Tester
Test regular expressions against text with live match highlighting.
Ouvrir l'outil
Marketing
Campaign URL Builder
Create analytics-ready URLs with required UTM validation, preset templates, and instant copyable output.
Ouvrir l'outil
Données
JSON to YAML Converter
Convert JSON to clean, two-space indented YAML for Kubernetes manifests, GitHub Actions, Docker Compose, and Ansible — free and fully client-side.
Ouvrir l'outil
Données
YAML to JSON Converter
Parse YAML into JSON with full block and flow syntax support. Ideal for Kubernetes, Docker Compose, and GitHub Actions configs.
Ouvrir l'outil
Données
JSON to CSV Converter
Flatten a JSON array of objects into a spreadsheet-ready CSV with header row, RFC 4180 quoting, and comma, tab, semicolon, or pipe delimiters.
Ouvrir l'outil
Données
CSV to JSON Converter
Convert CSV to a JSON array with header detection, type coercion, and RFC 4180 quoted-field handling. Supports TSV, semicolon, and pipe-delimited files.
Ouvrir l'outil
Données
JSON to XML Converter
Emit well-formed XML from JSON with a configurable root element, optional XML declaration, entity escaping, and pretty indentation.
Ouvrir l'outil
Données
XML to JSON Converter
Parse XML into JSON with attribute (@attr) and text-node (#text) preservation. Works with SOAP responses, RSS feeds, sitemaps, and legacy APIs.
Ouvrir l'outil
Texte
Markdown Preview
Write Markdown and see a live HTML preview with reading time, word count, and a copyable HTML output — all client-side.
Ouvrir l'outil
Texte
Text Diff
Compare two blocks of text line-by-line with additions, deletions, and unified diff output. Ideal for quick QA and copy reviews.
Ouvrir l'outil
Texte
Random Sentence and Paragraph Generator
Generate random English sentences or full paragraphs for placeholder copy, writing prompts, design mockups, and reading-rate exercises. Pick how many sentences or paragraphs and regenerate on demand.
Ouvrir l'outil
Texte
Acronym and Backronym Generator
Turn any phrase into an acronym (with stopword skipping and capitalization options) or expand a set of letters into a fresh backronym from a curated word pool.
Ouvrir l'outil
Texte
Text Style Encoder (Pig Latin, Leetspeak, ROT13, Vigenère, more)
Transform text into Pig Latin, leetspeak (l337), reversed, ROT13, Vigenère cipher (encode/decode), mocking SpongeBob case, or w i d e spaced styles — all in one tool with one-click copy.
Ouvrir l'outil
Texte
Find and Replace (Regex)
Find and replace text with literal or regex patterns. Case-sensitive, whole-word, multiline, dot-all, and Unicode-aware options. Supports capture groups ($1, $&, $`) in the replacement.
Ouvrir l'outil
Texte
Readability Score Checker
Score any text against five standard readability formulas — Flesch Reading Ease, Flesch-Kincaid, Gunning Fog, SMOG, Automated Readability Index, and Coleman-Liau — with a single averaged grade level and word, sentence, and syllable stats.
Ouvrir l'outil
Texte
Whitespace & Indentation Cleaner
Strip trailing whitespace, collapse blank lines, convert tabs ↔ spaces, normalize line endings, and clean up weird Unicode spaces — with before/after stats and full control over what gets touched.
Ouvrir l'outil
Texte
Username Generator
Generate memorable, unique usernames using customizable patterns — adjective + noun, with optional numbers, separators, and casing. Get a batch at a time and copy your favorites.
Ouvrir l'outil
Texte
Zalgo Text Generator
Glitch, distort, and corrupt any text with Zalgo-style combining marks. Adjust intensity, choose marks above, middle, or below, and copy ready-to-paste glitchy text for posts, bios, and games.
Ouvrir l'outil
Texte
NATO Phonetic Alphabet Converter
Convert text to the NATO phonetic alphabet (Alpha Bravo Charlie) and back. Spell names and codes clearly on the phone, in radio comms, or anywhere clarity matters.
Ouvrir l'outil
Texte
Fancy Text Generator
Convert plain text into 21 fancy Unicode styles — bold, italic, cursive, script, fraktur, double-struck, monospace, fullwidth, small caps, circled, strikethrough, underline, upside down, and more — copy any variant for bios, captions, and posts.
Ouvrir l'outil
Texte
Character Counter with Platform Limits
Live character, word, byte, and grapheme counter with progress bars for X, Bluesky, Mastodon, LinkedIn, Instagram, YouTube, SMS, SEO meta tags, Discord, Slack, and more.
Ouvrir l'outil
Texte
Text Line Tools
Sort, deduplicate, reverse, shuffle, trim, number, or prefix lines of text in one place. Case-insensitive options, blank-line removal, and per-line prefix/suffix wrapping included.
Ouvrir l'outil
Développeurs
README Badge Generator
Build shields.io badges for npm, GitHub Actions, Docker, PyPI, license, coverage, and custom labels — with live preview and copy-ready Markdown, HTML, or URL output.
Ouvrir l'outil
Texte
Markdown TOC Generator
Scan a Markdown document and generate a linked table of contents with adjustable heading depth, ordered or bullet lists, and GitHub-compatible anchor slugs.
Ouvrir l'outil
Texte
Markdown Table Generator
Paste TSV, CSV, or pipe-separated rows and get a clean Markdown table with column alignment, header toggle, and compact mode — all in your browser.
Ouvrir l'outil
Développeurs
HTML Minifier
Shrink HTML by removing comments, collapsing whitespace, and stripping noise — without breaking the contents of <pre>, <textarea>, <script>, or <style>. Reports byte savings instantly.
Ouvrir l'outil
Développeurs
CSS Minifier
Compress CSS by stripping comments, collapsing whitespace, and removing redundant semicolons. Outputs production-ready CSS with byte savings reported.
Ouvrir l'outil
Développeurs
JavaScript Minifier
Strip comments and unnecessary whitespace from JavaScript so it ships in fewer bytes — with string and regex literals preserved exactly. Runs entirely in your browser.
Ouvrir l'outil
Développeurs
SQL Formatter / Beautifier
Format messy SQL into a readable, standard layout — uppercase keywords, one clause per line, indented JOINs and subqueries. Works with PostgreSQL, MySQL, SQLite, and SQL Server dialects.
Ouvrir l'outil
Développeurs
URL Parser
Break any URL into protocol, host, port, path segments, query parameters, and fragment. Includes one-click decoding and a copyable JSON view for debugging redirects, deep links, and tracking URLs.
Ouvrir l'outil
Développeurs
User Agent Parser
Paste any User-Agent string and instantly see the browser, engine, OS, device type, and version. Built for log triage, analytics QA, and bug reports.
Ouvrir l'outil
Texte
HTML Tags Remover
Strip HTML tags from any block of text and keep only the readable content. Decodes entities, collapses whitespace, and is ideal for cleaning rich-text exports before reuse.
Ouvrir l'outil
Texte
BBCode to HTML
Convert forum-style BBCode to clean HTML with safe tag handling. Supports bold, italic, underline, links, images, lists, code blocks, quotes, and color tags.
Ouvrir l'outil
Développeurs
JSON Minifier
Strip whitespace from JSON to produce the smallest valid payload. Reports savings in bytes and percentage so you can see the impact instantly.
Ouvrir l'outil
Développeurs
Cron Expression Builder & Explainer
Build cron schedules with a step-by-step picker, then read the plain-English explanation, the next runs in any IANA timezone, and ready-to-paste snippets for crontab, Kubernetes CronJob, Spring @Scheduled, AWS EventBridge, and GitHub Actions. Standard, 6-field, and Quartz dialects (with L, W, # specials) all supported.
Ouvrir l'outil
Encodage
Morse Code Translator
Translate text to Morse code and decode Morse back to letters. Supports letters, digits, punctuation, and word separators.
Ouvrir l'outil
Encodage
Caesar Cipher / ROT13
Encode and decode text with a classic Caesar shift cipher. Includes a slider, a ROT13 preset, and a brute-force preview of all 26 shifts.
Ouvrir l'outil
Marketing
YouTube Thumbnail Downloader
Download YouTube video thumbnails in HD (1280×720), SD, HQ, MQ, and default sizes from any watch, Shorts, youtu.be, embed, or live URL — instantly and free.
Ouvrir l'outil
Sécurité
Credit Card Validator
Validate credit card numbers with the Luhn algorithm, detect the card brand, and compute the expected check digit — 100% client-side.
Ouvrir l'outil
Texte
Typing Tutor
Practice typing with structured lessons, quick speed tests, or your own text. See your WPM and accuracy instantly. Supports English and Nepali — runs entirely in your browser.
Ouvrir l'outil
Finance
Loan / EMI Calculator
Calculate the monthly payment (EMI) on a personal, auto, student, or business loan. Includes total interest, amortization schedule, and support for 10 currencies — all in your browser.
Ouvrir l'outil
Finance
Compound Interest Calculator
Project investment or savings growth with compound interest — including monthly contributions, multiple compounding frequencies (daily, monthly, quarterly, yearly, continuous), and a year-by-year breakdown.
Ouvrir l'outil
Finance
Mortgage Calculator
Estimate your full monthly mortgage payment with principal, interest, property tax, home insurance, and HOA. Shows loan-to-value, down-payment percentage, and flags low-down-payment PMI risk.
Ouvrir l'outil
Finance
Tip & Bill Split Calculator
Compute the tip on a restaurant bill and split the total evenly across any number of people. Includes tip presets, round-up, and currency selection.
Ouvrir l'outil
Cloud
AWS ARN Parser
Paste any AWS Amazon Resource Name (ARN) and instantly see its partition, service, region, account ID, and resource. Flags malformed ARNs and links you to the matching AWS console page.
Ouvrir l'outil
Cloud
S3 URI / URL Parser
Convert between s3:// URIs, virtual-hosted URLs, path-style URLs, and ARNs for any Amazon S3 object. Extract bucket, key, region, and version ID, and generate ready-to-run aws-cli commands.
Ouvrir l'outil
Cloud
AWS IAM Policy Linter
Validate AWS IAM policy JSON and surface common misconfigurations — missing Version, conflicting Action/NotAction, Resource wildcards, publicly exposed Principals, and bad "service:Operation" names.
Ouvrir l'outil
Marketing
Hashtag Generator
Generate high-performing Instagram and TikTok hashtags from a single keyword — grouped into Safe Bets, Viral Potential, and Niche Gems, with caption keywords, trend and difficulty indicators, per-tag refresh, and a live social preview.
Ouvrir l'outil
Sécurité
Safa — Clean Premium Adblocker
Safa is a clean, premium ad blocker for Chrome that blocks ads, trackers, and intrusive overlays — with no accounts, no sync, and no telemetry. Free, fast, and Manifest V3.
Ouvrir l'outil
Pourquoi les développeurs choisissent UtilitySansar
Chaque outil est conçu autour de trois principes : être rapide, respecter vos données et ne pas vous gêner.
100% côté client
Votre saisie ne quitte jamais le navigateur — aucun serveur impliqué.
Aucune configuration
Ouvrez un outil, collez vos données et copiez le résultat.
Sans bruit
Interface épurée, sortie dense, accessible au clavier là où c'est pertinent.